How Sweet it is (to be loved by you), done by James Taylor, off his Greatest hits album - So many nights in the dorm slow dancing to that one
Love and Luck by Jimmy Buffett - When we're having troubles, it helps bring us up, when we're doing well, it reminds us how happy we are. "With a little love and luck, we will get by..."
I Can't Tell you Why by The Eagles - "Look at us baby, up all night, tearing our love apart. Weren't we the same two people who lived through years in the dark? Every time I try to walk away, Something makes me turn around and stay, and I can't tell you why...Nothin's wrong as far as I can see, we make love harder than it has to be, and I can't tell you why..." - hearing that song when we were having some tough times helped slap us back into reality and realize that we were meant to be together and that we were just being stupid