Need some advice from gay couples in LTRs

So for the last few years, I've been unable to hold a relationship for longer than a month. I would like some advice from gay couples in relationships that have lasted years to give me some pointers.How quickly did you first have sex? How often do you have sex? Do you have an open relationship? Are there other ways to keep someone around longer other than lots of sex? How often did you hang out while you were in the first stages of dating, and what all did you do outside of the bedroom together?That's the only thing I can figure I'm missing because I don't have full on sex right away in a relationship. I will wait several weeks if the relationship even lasts that long as my experience has been once we've had sex, they got what they wanted and they move on.I've asked for feedback from some of them, but they usually just say they aren't ready for a relationship or that it's too much for them to deal with at their point in life. The others just up and disappear on me and I never hear back from them again after that month.I consider myself supportive, loyal, a good listener, moderately attractive, good job, good head on my shoulders, and basically I'd date myself sort of thing. I don't see what my flaws are that prevent a guy from sticking around longer than a few weeks other than I don't put out right away, which in my experience has been a bit of a catch 22.So thoughts? Advice? Thanks!