I'm an idiot, I know that but I can't let this out anywhere else.
Many years ago I got together with a guy and whilst it had its ups and downs it was magical and romantic and very intense. He started out as a friend and unexpectedly for both of us, we got together. We were very young and life at the time was complicated by trying to adult in the real world for both of us. We ended up splitting up as he didn't have the time for me that I thought I deserved but also I wasn't sure we wanted the same things. Got together with someone else but we still had to navigate our way towards a friendship as we are part of same friendship group and it would make it awkward otherwise.
Fast forward a few years and broke up with the man I was seeing and ended up back with this guy again. A year or so later we split up again, partially due to him bailing on me (he has since admitted he was scared for various reasons) and I think I was still hyper aware he wasn't giving me enough time which triggered the last time's doubts - probably too soon to give it enough chance.
Somewhere between that time and this we've forged a friendship over the years where we walk a close line between supporting each other and having fun on occasional nights out or lunch dates and not getting too deep and meaningful or regretful. That said, I think we use each other as an emotional crutch or support when other things go wrong. He's had girlfriends in the past and I'm married although not entirely happily.
A few weeks ago we ended up spending quite a lot of time with each other as it was a friends wedding. Lots of drinks later and he admits he regrets breaking up and the stuff I was ready for years ago, he's finally ready for. I haven't really said much since but it's made me miss him and the love and caring thoughtful relationship we had at the same time as shining a spotlight on all the things I'm missing in my own relationship.
How can I get this out of my head? He's a good friend over many years who knows me so well and we still get on very well. I don't want want to be having "could have" thoughts but it's massively messed with my head and I've been grumpy and tearful and can't sleep ever since.