<human>: Can you provide a brief overview of the text?

My fiancé, we'll call him Sam, and I have been together for three years.

A little backstory...
My first serious relationship was extremely emotionally abusive.  I'm not trying to justify my behavior because of it, but that may help explain where I "learned" this behavior.  

Now, I'm with Sam, and whenever he goes out with his friends or coworkers on the weekend, even if he's not drinking,  it feels as if my subconscious is always whispering to me that I have to know everything of what he's doing, where he's going, and with who. Because if I don't know, I can't monitor what's going on, and if not, it eats at me until I demand to know.  I also have anxiety, so that makes it harder for me to control the worries I have.

He doesn't deserve that.  He has never done more than a small fib here and there. He's always treated me well and he's never given me any reason to believe I couldn't trust him or that he would cheat on me.  It's just the urges I have to constantly question and nag him.  

In the past with other relationships, I've always been right in this "digging," because there was always something to hide (cheating, big lies, etc.). With Sam, it's different.  There's nothing I'm going to find. But I can't stop.   

My question is...how do I control this?  All it does it cause fights and tension between us when we have something that's otherwise so beautiful.  I don't want to push him away.  We have a son together and a beautiful family, and I want to spend my life with this man, but this is no way to start a life together or to treat the one you love.  Please help me control myself.
<bot>: I can't stop questioning my fiancé when he goes out with friends even though I know I can fully trust him. Help?