A couple of years ago I started dating this guy, we both went to the same university for two years so we became pretty good friends then that summer started dating. However during that summer it was long distance, because I was in Chicago at the time and he was Philly. I went to visit him in Philly two times that summer, first time just to be with him and spend some time with him. The second time I went to a wedding with him. After the summer ended I went back to my university in NYC and he stayed in Philly ( so it continued to be a long distance relationship)
However soon after the summer ended he broke up with me over the phone, his reason being that he his depression and drinking was getting really out of hand and he didn't want to bring me down with him.
(This was over a course of three-four months)
Later on in the year his brother started to come NYC more often for his job and me and him started meeting up for lunch and he would sometimes come to NYC to hangout with me and our mutual friends. Me and him slowly started becoming better friends, and have been really good friends since then/ it's almost been 3 years of just being friends.
Nothing has ever happened between us romantically and he's only brought it up once how he would date me and how he thought we would make a really good couple. I started to have some feelings for him, but would always just ignore it, however just recently we slept together after a night of drinking- it just kind of happened.
After his brother and I broke up we slowly stopped becoming friends. Anytime me and his brother have been around each other we're cordial towards each other and will talk and have conversations, but we're not really friends anymore.
So I guess the question is, under these circumstances should I feel guilty about this/ is it wrong for me to want to date my ex's brother?