Sweetie you don;t trust him 100% at all like someone said on here before. If you wouldn't keep wondering if he slept with someone. If he did would you leave? The answer is no. Leave it alone if you suspect something with more solid evidence then start worrying. As for now you won't really ever know maybe. Girl leave it alone and quit digging up mess. That is the problem with relationships we create and figure out things to worry about stuff. Quit asking him. Nobody is ever gonna tell you the truth to hurt you. But, I will give you some good strategies to use if you wanna know to get the truth out of him because it worked for me. Ask him the same question months from now after he has forgotten about your concern and word in a different way intiating the question under a totally different topic. It worked for me in a past relationship. But then again you may not consider my advice credible (even though it is) once you read my posting.