Song about having trust issues... keep reading!?

Ok so I've had a stream of poor relationships and not much luck finding a guy I can trust. Now there's a new interest in my life & he is making a HUGE effort to continually reiterate to me that he's not like the other men I've dated and I should open up and let him in and let my walls down and just trust him.. he wants me to let go & see what could happen with us. Are there any songs that are about being unsure or wanting to try something new but scared of feeling vulnerable, or anything of the sort??? Please help!!! Hahah he's already posted a video on FB of Up To You by Chris.Brown & I want to post something back hahah its the teenager in us ;) ...although we're mid-20's hahah please & thank you :)!