I was hoping to play a celeb or PB line using William Beckett against Travis McCoy or Gabe Saporta. The two had a sort of "friends with benefits" situation in which both ended up having strong feelings for one another, and because of it William shut down and internally freaked out, which made him more irritable and even a little mean. Your guy also decided to shut down and ended up messing around with another guy or girl, and when William caught the two of them, that was the end of the quasi-relationship. Now, Bill's "straight" and has become somewhat of a family man, and your guy suddenly takes interest in him again after a less-than-tense meeting somewhere, and decides to pursue Bill again. Bill likes the life he has, but also has never gotten over your guy.
Definitely subject to reworking things, and if you don't mind going outside the realm of present day or even true events that are happening right now in order to have more creative freedom, that would be awesome. This is also probably going to have a lot of smut at first, but it's not all I want to write.