Selena Gomez has vowed never to write songs about her ex-lovers. The Wizards of Waverly Place star says she won’t be singing about the boys that broken her heart. "I get so mad at ex-boyfriends, but if a boy hurts me, I don't write a song about it. They don't deserve me," ContactMusic.com quoted the 16-year-old starlet, as saying. Selena was rumored to have dated Nick Jonas recently.