I always think he's sleeping with the girls he hangs out with?

Me %26amp; my ex are no longer officially together but by the way we act you wouldnt be able to tell(We're not toether due to distance I'm in the Air Force he's in the Army)I'm home till Tuesday then I leave.Tonight he's having a party that I cant go 2 because I have other obligations.He's coming to my going away party tommorow %26amp; I know the first thing I'm gonna say is ';So did u have fun at yur little party';Then im gonna wanna say ';So did u have sex with any of the stupid girls at your party'; Which he wont be able to because it's his moms house %26amp; she adores me %26amp; wouldnt let that happpen plus I have no reason to think that seeing as im thr only girl hes had sex with since or breakup yet I still ALWAYS ask him if he's slept with someone else everytime we hang out.But the thing is I know im gonna wanna ask which will provoke an argument which I dont wanna have.Can u give me some advice on how to stop thinking negativly and just try 2 avoide thinking about what he's doing right now %26amp; avoiding asking about it?lolI always think he's sleeping with the girls he hangs out with?
Well it looks like you don't trust him. It will hurt his feelings and make him know you don't trust him if you keep asking him. You need to ask yourself if you are happy in this relationship, cause it seems like you aren't. If he isn't doing anything to give you an idea he is having sex with other girls, what gives you the right to accuse or suggest he is? I know you can't help but be paranoid at times it happens to the best of us, but if you want to keep him, you need to force yourself to trust him or he will be driven away.