Bug, starring Michael Shannon and Ashley Judd.
Check it.
Peter Evans: [on why he hasn't been with a woman for a long time] I just decided it wasn't worth it anymore.
Agnes White: What wasn't?
Peter Evans: You have a center right? A place inside of you that's just you, that hasn't been spoiled... And I think it's really important to try and keep that space sacred. In some sense, on some level, but... sex or relationships cloud that space... or, they cloud me I guess, they make it difficult to be just me and not have to worry about... being somebody else. I sound like a big asshole, don't I.