In my feels vent/Missing an old fwb

Maybe I’m just in my feels 🤦‍♀️ I’m just really missing my friend right now. He’s an old hookup but I caught feelings and we didn’t have any boundaries in our friendship/relationship so I ended things half a year ago (we were together for six or seven months but he didn’t seem like he wanted to commit and we never told each other what we wanted). We parted as friends and still catch up every now and then. He usually reaches out to me, I try to keep my distance because it was a painful experience for me though we both care about each other a lot as friends. We just thought the mature thing was to stay amicable, plus we have mutual friends and didn’t want to cause drama. He came over two weeks ago so we could hang out because we hadn’t seen each other in a few months. It was great seeing him but he started to come onto me (he was a little drunk, I was basically sober) and he wanted to hookup. I told him no, that we had both agreed to just be friends and that it wouldn’t be a good idea. He was fine with that and slept on the couch. Since then, I’ve been missing him a lot. A week ago he sent me old snaps of us together and then sent a heart emoji, and it’s just messing with my head. I know he doesn’t have feelings and probably never did but I just haven’t been able to get him off my mind since I saw him. Part of me really wants to just text him just to tell him I miss him but I don’t even know what good that would do. Maybe I just needed to vent. Any thoughts?