Oh man, I see you got it bad. Look, read these two articles. Do what they suggest. That's how you beat this stuff. It's not easy but it's the only way without pills.
obsessive-compulsive/topic144944.htmlobsessive-compulsive/topic103176.htmlYou need to stop checking, stop asking, stop googling, stop trying to reason with it or prove it wrong, and if you are bothered by stuff like 'you are ignoring me because you are gay', you're doing it wrong. The idea is to declare you don't care anymore, decide it, and mean it. Accepting all ramifications and consequences, declaring them irrelevant, and not allowing bad motivations to be placed on your reasons. You are accepting the possibility (which there really isn't), and declaring that you aren't going to deal with it, whether you think it's got a good point or not.
OCD does not listen to logic. Period. End of story. No truth was ever, ever revealed via a Pure-O obsession.