I don't think you sound necessarily codependent, maybe you're just very much in love, and interdependent.
My gf and I are sickeningly in love. lol. We spend tons of time together. But we also both have a healthy independent streak, we both like alone time, we like dating others, we have some friends not in common. I think you need this to be successfully poly. You need to be OK if your nesting partner goes out without you, or wants alone time in your house with his OSO. Some newly poly people think they will just need to have a date with another if their nesting partner has a date. I do like it when it works out this way, but it only happens a percentage of the time. So I'm fine being alone, or having a friend over, or going out with friends, while she's at her bf's.
Pixi and I have a small ranch house, but it has a full renovated basement with a family room/media room. So when a bf comes over, she might spend an hour or so with us when he gets here, talking (unless he and I are hot to trot, then we go to the bedroom). But then she'll go downstairs and do her thing and let me and bf have the upstairs to ourselves. So we can even have sex in the living room or kitchen if we want lol. Or just be able to talk to each other one on one.
My gf and I are sickeningly in love. lol. We spend tons of time together. But we also both have a healthy independent streak, we both like alone time, we like dating others, we have some friends not in common. I think you need this to be successfully poly. You need to be OK if your nesting partner goes out without you, or wants alone time in your house with his OSO. Some newly poly people think they will just need to have a date with another if their nesting partner has a date. I do like it when it works out this way, but it only happens a percentage of the time. So I'm fine being alone, or having a friend over, or going out with friends, while she's at her bf's.
Pixi and I have a small ranch house, but it has a full renovated basement with a family room/media room. So when a bf comes over, she might spend an hour or so with us when he gets here, talking (unless he and I are hot to trot, then we go to the bedroom). But then she'll go downstairs and do her thing and let me and bf have the upstairs to ourselves. So we can even have sex in the living room or kitchen if we want lol. Or just be able to talk to each other one on one.