Does anybody know any recent pop/rap songs that show that love is difficult in its lyrics?

I have this project that I'm working on in this camp and the object is to make a presentation on your love life. And my idea is to make a mix of different pop or rap songs that explain how my love life is. I have alot of songs that I am using, my people like Drake, Jay Sean, Eminem, beyonce, bruno mars, chris brown, cody simpson, justin bieber, iyaz, jason derulo, katy perri, lady gaga, lil wayne, nicki manaj, pink, rihanna, the script, selena gomez, t-pain, and much more. So if you could find any songs that show the difficulties that you could have in a relationship or how difficult love is that would be great. please and thank you!