Were you even born with genitalia, Hickey? I mean, it's either that, you've got a mental imbalance, or you got seriously rejected in the past, because, otherwise, the mating instinct would ring in your ears.
Personally, I'm not looking for sex as a primary, but someone who gives a damn, and who I give a damn about. Someone I can spend all day with, talking, and not get tired of it, even as my eyes go bleary and I fall unconscious to sleep. Sex is nice, though, and I'd like to be able to perform acts of a more animal nature with such a person.
On that note, if 15 minutes is your personal best, you're obviously doing something wrong. And, for that matter, a relationship where you're grinding your teeth over it, isn't one worth having. I mean, that's just plain logic.
So, I'm pretty sure you have a set of working genitalia, and you're not likely to be so imbalanced, your mating instinct is gone. That basically takes the loss of the genitalia. That leaves rejection. And I'm just gonna tentatively say, get over it, because the cynical "It's not worth it" view isn't worth it. Maybe the "It's not going to happen to me" view is okay, but don't be so brash as to say the single most important part of your puny animal existence, isn't important. All your adaptations are only there to keep you alive long enough to rear offspring to the point they can do the same.