You definitely should tell your guy how you're feeling. Let him know that he hasn't given you a reason to doubt him... you're just dealing with old issues. We all bring baggage with us to relationships and it's best to talk about those things openly.

I have a lot of fears and insecurities about relationships too... so I undertstand where you're coming from. I also understand where the guy I'm interested in is coming from too. I'm glad he's being open with me. I hope I can help him trust me... and trust himself enough to continue being open.