I slept with a very close friend who pursued me quite heavily after many years of non-romantic friendship. Before that we were always each other's dating advice-givers and wing person.
The sex was neither here nor there but it was very romantic. We spent three nights together and there was a lot of cuddling and kind words.
He is seeing some casually that he is unsure about but who is head over heels for him and is pushing for them to get serious.
I ended up sleeping with him while this woman was on a business trip. They were not exclusive and she does know that.
She then came back from the business trip and they're back to dating and I really don't like it.
It's not a jealous feeling and it's not that awful anxiety that comes with rejection. It's more of a feeling of discomfort that I've now got to have a front-row seat to him moving forward in this relationship, and it feels unpleasant, having slept with him.
As cowardly as it sounds, I want to cut the friendship off before this subtle discomfort I'm feeling turns into something stronger and more miserable. I love my friend dearly but I value my mental health more.
Of course I know it was my mistake to sleep with him, and (counterintuitively) I actually don't know that I'd want a relationship with him. I just no longer feel that I want to be his friend and relationship confidante any more.
I think there is probably an ego aspect of it, where I feel affronted that he would have those few nights with me and then go back to his regular dating life. I can't really piece together exactly what I'm feeling, especially as I'm not sure I'd want him for myself.
My desire for self preservation is prevailing, I think, and I don't think I want to carry on the friendship.