Mad is really good at lettin' ya know what's up!

I do the same thing, I have trust issues, even have recent huge post about it heh. With me, it's not a friend tho, it's someone a little closer, my wife. I trust her completely, but then, I don't. Oxymorons are fun!

I think your friend is great to listen and help you out, and you really have nothing to worry about. Read what Mad said a few times, and let it sink in...I think you'll find you'll be fine. Everyone goes through periods of mistrust and doubt, but they will go away, I know mine will, and I believe yours will too!