If anyone is unlucky in love, it must be Kat Von D. The celebrity tattoo artist has once again ended her relationship and engagement with DJ DeadMau5 after finding out that he's been cheating on her. The reality star took to her official Twitter to release her sad emotion. Read the tweets inside. Tattlers, don't you just feel bad for Kat? She was engaged to Sandra Bullocks ex-husband-he cheated on her. Then she dated Nikki Sixx-that ended and now her second engagement is over. What advice would you give Kat Von D on love?