Songs for a complicated relationship?

for 9 months i dated this guy frank. & he broke up with his girlfriend of 8 months just a few months before we started dating. its been rocky and we had a mutual break up back in february. now its like he's going from me to casie(his ex) every other week. as much as i want to completely break it off from him, i can't. i know he'll never be able to stay with me and only me because he is such a player and can't be tied down. (we're 17) we argue because i won't trust him because of his relationship with casie and he gets mad that i won't bring my guard down completely. what are some songs that could help me with our situation? the only one i can think of is pullin me back by chingy. i like rap, country, hip hop, anything really. thank yaaa!