What to do when your fiance doesn't trust you?

My fiance and I have been together 2yrs, He is a cop that works long hours. I feel like he doesn't trust me around other men and even watches as I talk to a bartender then quizzes me on what we were talking about, This happened the other night when we went to a friends party he got really paranoid when he thought the guy was flirting with me & even started blaming me for flirting back which is a lie, The guy was complimenting me at the bar while with my friend and when the guy said something funny I couldn't help but laugh, I told him I was engaged & then walked back to my fiance, This started an argument, Which continued when we got home, Things got so headed that he smashed the bathroom mirror then left & slept at a friends places, We still haven't cleared the tension between us since, Our relationship can be very volatile. For the last 2 nights when I got home from work, I came home to a house full of his friends, drinking & a messy home, He knows that drives me crazy and agreed when we moved in together not to do it so im sure he's doing it to get a reaction out of me & Im trying hard to not give in, But when I came home I was so pissed off that he kept staring at me with a smirk on his face, Honestly I wanted to trow a bottle at him, He really peeved me off, Needless to say he slept on the couch both nights! Yesterday he kept doing little things that he again he knows annoy me then laughs when I got angry with him then he started to kiss me and It lead to is having sex. When I ask him if he trusts me, He blanks me or tries to distract me from the question, He never answers me and its driving me crazy! I know it might sound like a stupid problem to have but it bugs me with how we both handle conflict, Any advice?

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