I've been trying, these last few days, to just feel and not judge my feelings. It has helped

It's strange how when I let one layer of feelings out, another surfaces, and another... I had a lot of bottled up emotions I wasn't dealing with at all.
I'm very much a person who can and will just put my emotions on a shelf in a box marked "Deal With Later". It's a survival skill when you grow up in a crisis-a-minute crazy family. And it serves me well at work, I can see the saddest, scariest, most heart-breaking things and just stay focused on doing my job and getting shit done. But sometimes, I forget to go back and process all the emotions I've stuffed back there
There's a thread somewhere on this forum about "describe your ideal poly set up". I've never replied to it, and I think that's because I knew writing out my answer would force me to face some tough emotions. My ideal poly life would be poly only in theory. Well, for me. I'd want my partner to do whatever makes them happy - I love seeing Andy with his friend-girls, I love how happy they make him, I would not give that up. But for myself? I do cherish the freedom and openness of poly, but the reality of juggling multiple relationships sucks. I'd be happiest having one partner, and having the freedom to explore, but never acting on it beyond flirting and the occasional drunken make-out session.
It's just too damn hard on me, trying to separate sex from the "you and me, happily ever after" stuff. Sex, romance, and life partnership just feel better together for me. Give me one, and I want the others. Take one away, the others kind of lose something.
I've mentioned before that Andy has kinks I don't share, and that we opened our marriage so we could both find sex partners with whom we were more compatible. I don't think I've ever mentioned that his kink is cross dressing. It's such a libido killer for me

I actually enjoy helping him get dressed up, and going out with him, or just hanging around and doing his nails. But... It's not sexy, to me, at all. I like my guys in suits or LL Bean flannel, not lingerie. So our sex life is kind of hit or miss. I can do the kink stuff for him, handjobs, blowjobs, toys. And that's fun, but not at all a sexual release for me, I don't even get aroused doing it. Andy tries to do the slightly-rough-vanilla sex that I like, but his heart (and his cock) just aren't into it.
And I want sex with someone who's into it. Someone who enjoys the same things I do, who isn't doing it just for me, but for their own pleasure, too. Maybe that seems like a minor distinction, but to me it's important.
Dating other people seemed like the perfect solution. For Andy, I think it has been. He has online FWBs to trade pics and fantasies with. He has Steph and Anna-Louise. For me... I've had great boyfriends, but there's also just been so much heartache.
I guess the strongest emotion I have right now is sadness, and grief, that I didn't get the perfect mono life I wanted. Having to get my sexual needs met through other partners is a second choice option for me. It's better than losing Andy, and it's better than resenting him or being sexually frustrated. But it's not my ideal. I thought it could be wonderful, but it's basically been more trouble than it's worth.
It feels damn good to admit that, though. To be honest and say, maybe I can make this work, or maybe I can't, but either way, I wish I didn't have to try.
Where are your "supposed to" feelings coming from? You don't have to be anyone but your own actual self! If a relationship is causing you so much angst that you are doubting it, why are you in it? (I'm not talking about a momentary glitch, but a existential crisis...)
A lot of the "supposed to" emotions come from feeling like I'm betraying everyone by even thinking those thoughts. Andy, who trusts me not to do the life entanglement thing with other partners. Dag, who signed up to be a FWB/boyfriend, not a life partner. I mean, I'd never act on the feelings of wanting to be with Dag 24/7. I love Andy, and I love that Dag is devoted to his wife and kids.
I wish I could explain it better, but it's not like, I want to marry Dag, and I'm sad that it can't happen. It's more, I love Dag SO MUCH that I think being married to him would be wonderful. I love him in that way I have only loved a few people in my life, where I could see us becoming something amazing. I don't need it to happen, I just feel like it could. And I feel guilty about that.
Of course, there's also the experience of reading on this forum, all the people who can love without needing to follow the standard script... I feel like a failure for not being able to do that.