trust emotion issued in relationship?

Ashley✨ • 18•Libra • ✨
My boyfriend was my best friend for a while, he's my other half and has never done me wrong and I don't think ever will. I've never connected with somebody like I do him, but I still get super emotional and have a very hard time trusting him to not hurt me. I have been cheated on and abused before him, I never thought I'd be the type to have trust issues cause of a past relationship, but I think I am? I'm not sure what to think of it but I feel bad that I treat him so untrustworthy when Deep down I know there's nothing to worry about.