For the past month or so, my boyfriend has been having some trouble finishing during intercourse. I'm fine - more than fine - and he's clearly turned on, but after a couple of hours, he still can't come. The end result is that he feels frustrated, I feel like a failure. I really care about him and I am afraid this will hurt the relationship. Now keep in mind this doesn't happen every time -- maybe every third or fourth time we have sex. What can I do to help? Is this more common than I think? Please help. This was never a problem before . . . . what could be the reasons behind this?