Am I a horrible person!? I feel so badly

So before I started dating my boyfriend I dated a horrible man who would cheat on me constantly and manipulate me into coming back and mentally abused me and occasionally physically, and was just awful to me and put me through hell. Due to that I gained a lot of trust issues.

My current boyfriend is a sainttttt. He’s so good to me and I love him so much. He knows I have trust issues about things, and works with me to ease my mind. I used to barely trust him but 4 months in now i’m really almost over my trust issues. I don’t think my boyfriend would cheat on me, but sometimes my mind gets the best of me.... Sometimes when my boyfriend is asleep, or steps out of the room I look through his phone (he gave me the password) and I never find anything at all... and it eases my mind so much.... but I feel so guilty for it.. I don’t know how he would feel about it since he did give me the password. Am I just a horrible person?..