Lyric discussion by slip-frawg 

Cover art for Let Love In lyrics by Goo Goo Dolls, The

I think its about his relationship witha girl who'd been hurt before, and was reluctant to let love into her life. Shes viewed by others shallowly, and no one sees beyond her face, and into who she actually is, and he's saying that he'll wait for her to make up her mind about whether or not to let him in.