How to Talk About Opening Up a Relationship

For many couples, the conversation around opening up a relationship is a tricky one to both initiate and be on the receiving end of. If you’re the person bringing it up, you might feel especially vulnerable about sharing your needs so openly and afraid of being met with judgment or rejection rather than curiosity. On the other hand, if you’re the partner hearing this news for the first time, it can trigger feelings of insecurity, inadequacy, and even straight-up panic.Basically, this conversation is an emotional minefield for everyone involved, especially if you’re not prepared.“Opening a relationship doesn't erase existing dynamics. It tends to amplify them,” says Eman Almusawi, LMFT, NPT-C, a couples therapist and clinical director at A Better Life Therapy. “If trust and communication are already strong, those strengths become even more important. If resentment, insecurity, or unresolved conflict already exists, those challenges usually become louder too.”In other words, how you have this conversation matters just as much as what you decide. Here's how to actually talk about it, without blowing up your relationship in the process.First, Why Do People Usually Want to Open a Relationship?Every relationship is different, and even the same relationship looks different over time. People grow and change, and relationships evolve. There's no single reason couples start considering non-monogamy, but nearly every one of these conversations starts the same way: with honesty.“Some couples are genuinely curious about exploring a different relationship structure, while others are looking for more sexual variety or feel that one partner has needs that aren't being met within monogamy,” Almusawi says.She’s also seen the topic surface after a big life change, like moving cities, a change in a person’s career, or a milestone birthday, when people naturally start looking back on their life and thinking about what they want out of their future.Before you bring it up, though, Almusawi suggests asking yourself one question first: Why now?“Sometimes the desire to open a relationship is exactly what it seems,” she says. “Other times, it's really a conversation about something deeper, like loneliness, feeling disconnected, mismatched desire, or wanting more novelty.”Getting honest with yourself about what's actually driving the conversation will make it a lot more productive, whichever way it goes.What Is Ethical Non-Monogamy?Okay, so, if you’ve always been in a committed, monogamous relationship but you’re considering opening it up, what does that mean for your relationship status? Most couples in this situation land on what’s called ethical non-monogamy (ENM), which refers to relationship structures where everyone involved knows about the arrangement and freely consents to it. It's an umbrella term that can cover an open relationship, a polyamorous setup, or a couple who swings.“The defining characteristics are honesty, transparency, communication, and ongoing consent,” Almusawi explains. “That's what separates it from infidelity. It's not about the number of partners. It's about whether everyone has the information and freedom to make an informed choice.”ENM isn’t a band-aid solution to a cheating partner. It’s a deliberate choice that two people make in a relationship to be honest about their future actions and intentions.“Like any healthy relationship, ethical non-monogamy still requires trust, accountability, emotional safety, and regular communication,” Almusawi says. “Those aren't optional just because the relationship structure is different.”How to Bring It Up Without Hurting Someone’s FeelingsYou’ve thought about it, and understand it, and now you’re ready to bring it up to your partner. But before you get too ahead of yourself, consider a few ground rules. It’s not a good idea to bring it up in the heat of the moment, especially if you’re mid-fight. The idea of opening up your relationship should never be a threat, but rather a thoughtful decision that comes from a place of love and respect from both partners.If this is the first time you’re broaching the subject, don’t expect a yes-or-no answer right away. Give your partner time to process, ask questions, reflect, and revisit the conversation over a period of time.“Expecting an immediate answer can create unnecessary pressure and make it harder for both people to respond honestly,” Almusawi says.Dr. Cat Meyer, a sex and relationship expert, suggests easing into an open relationship rather than jumping into the deep end, especially if one or both of you are new to this type of relationship structure.Add Cosmopolitan as a preferred source in your Google search results.Use your Google account to add this to your settings.“People don't necessarily know that they can take progressive steps toward opening up their relationship,” she says. “A lot of couples just jump into non-monogamy, and if they don’t have the skills of repair, that’s how they end up getting hurt. It’s okay to make mistakes, but what does the process of repair look like? That's a critical skill for this type of relationship.”When it comes to actually finding the words, you can’t control someone else’s reaction, but you can control what and how you say what’s on your heart. Instead of presenting it as a decision you've already made for yourself, Almusawi suggests inviting a conversation.“Approach it with curiosity rather than persuasion,” she says. “Something like, I've been thinking about something I'd like to explore with you. I'm not asking you to say yes today. I'd just like us to talk about it and hear how we're both feeling.”If you don’t want to bring it up out of the blue, Dr. Meyer suggests using a podcast, book, or article (maybe even this one?!) as an in-road to the conversation. It puts a little less pressure on the conversation, and it gives you some insight into your partner’s initial reaction to this type of relationship structure.Once you’ve opened the floor for the conversation and shared where you stand, take a step back and leave some room for your partner to explore their own emotions—which may not be pretty at first.“Just as important as sharing your own thoughts is making space for your partner's reaction. They may feel surprised, hurt, anxious, or simply uninterested. Those emotions don't automatically mean the conversation went badly. They deserve room to be heard without immediately trying to change them,” Almusawi says.The Importance of BoundariesIf deciding to have an open relationship is the first step, having a talk around boundaries is the second. Boundaries are so important in any relationship, but especially in an open relationship. You’ll want to both get on the same page about things like whether emotional connections with other people are okay or if this is strictly physical, what kinds of physical intimacy are on or off the table, what type of protection you both plan to use, how much detail you want to share with each other about outside partners, how time gets divided, privacy expectations, and how you'll keep prioritizing each other through all of it.Almusawi also recommends planning for the hard conversations before you have to have them.Boundaries that are created out of fear, pressure, or a desire to avoid losing the relationship usually aren't sustainable. —Eman Almusawi, LMFT, NPT-C“I also encourage couples to talk about what would happen if someone became uncomfortable after opening the relationship. How will you check in with each other? Can either partner pause the process? Having those conversations beforehand can help create a greater sense of safety.”Whatever boundaries you land on only work if both partners are dedicated to upholding them.“The most important part isn't the specific boundary. It's that both partners genuinely agree to it. Boundaries that are created out of fear, pressure, or a desire to avoid losing the relationship usually aren't sustainable,” Almusawi says.What If Your Partner Says No?This is the part nobody wants to think about, but it’s a valid answer. Your partner is allowed to not want an open relationship.“Respect the answer,” Almusawi says. “Consent applies to relationship structure just as much as it does to physical intimacy. No one should feel pressured into agreeing to a relationship they don't actually want.”If the answer is no to physical intimacy outside of the relationship, then the answer is no. But you can ask your partner if there’s any room for negotiation within the relationship.“Some partners might be open to allowing flirtation to exist outside of the relationship,” Dr. Meyer says. “The question then would be, is there something else you would need to feel safer in our relationship?”Instead of pushing back, go deeper into the no and get curious about what’s behind it. Have they been cheated on (emotionally or physically) in past relationships, or lied to? Have they had moments where they've given freedom and then felt like it was taken advantage of? Ask what concerns them, and listen without becoming defensive.“Openness can bring up a lot of people's history… those points can be healed, they can be worked with, they can be recognized as points of extra support and presence,” says Dr. Meyer.Sometimes the conversation uncovers unmet needs that can be addressed within the existing relationship. Other times, it reveals that the two people simply have different values around relationships, and that's important information to have.According to Almusawi, the healthiest outcome isn't necessarily opening the relationship or staying monogamous: "It's making sure both partners feel they can be honest about what they want, feel respected in the process, and make decisions together without pressure, fear, or coercion."