Help with trust issues!

I've been dating a very loving, caring man who treats me right. He is so supportive and always there for me. He has never done anything wrong that would make me question our relationship and trust. However, I just can't seem to trust him completely. I just realized I think I have an anxious, insecure attachment style and I'm wondering if this has anything to do with it. I'm always worried that he is going to leave me. In addition to that, now I'm worried that this whole trust issue is going to negatively affect our relationship. I need help in understanding why I think like this and how I can change!

Have you been hurt before? Cheated on? Those things can cause you trust issues right there. It's hard to put it all out there especially if you've been hurt before. As long as he gives you no reason to suspect anything I say let it go and move forward because it can lead to problems later on.

Sorry I cant give you any great advice but I can tell you that at times in the past I have felt that way also. But my ended in me having a affair on my husband instead of the other way around It has caused so much pain its hard to even put into words. I feel like I can never trust anyone including myself. Sorry I am unable to give you any good advice but just thought I wouldlet you know that there are others out there that feel the same way. Hugs to you!