Relationship rule No. 1: NEVER get a tattoo of your significant others name or face! You are almost doomed to breakup immeds. Apparently Benji Madden hasn't heard of this important dating law. He and GF Paris Hilton have only been together for four months, but he's planning on getting a tattoo of Paris' face on his torso, according to contactmusic.com. And why isn't Paris returning the compliment? "He is going to get one of me but he won't let me get one," Paris told the site. "He doesn't like tattoos on women. He thinks I look pure." :) We'll let you respond to this one below…