Trust

Ok I've posted before but I seriously am driving myself crazy! Is there something wrong with me???! My boyfriend goes to work and comes home. Occasionally he is like 30-40min late but always calls me if that's the case and I can always call him and he'll answer or call right back. He never goes out, just plays video games but always in front of me. Only has a work flip phone which can't even get on the internet. We have two kids together, everytime we fight and I tell him I'm leaving him he begs me not too and tries everything to fix whatever it is I'm mad about. Are sex life is great, in general we are so happy until I ruin everything by accusing him of crazy things. Why am I so in? He's never cheated on me or even came close and he loves me and our babies so much. Tells me he'd do anything to keep our family together. No passwords on anything, we are always together unless he's at work, brings home his paychecks for me and the babies. My head is constantly thinking he is up to something!! Why?!?? Is it like a intuition that he is up to something and I haven't caught him yet? He is almost too good for there to be nothing going on type thing. Wtf should I do? My relationship is becoming ruined because of my trust issues and I'm totally being that crazy girl!! I feel like I'm constantly snooping and I have yet to find anything except some porn here and there which I don't care about. But my life is being consumed by always thinking of what I can catch him doing and its ruining my life! Please helllp!