Who Demi Lovato Credits for Saving Her Life!

Singer Demi Lovato is celebrating three years of sobriety and guess who she is crediting? Demi took to Twitter to thank her friends, family and fans, but most of all her boyfriend Wilmer Valderrama. Demi posted a photo of the two kissing with a caption saying, "this man completes me. He's loved me the way I never thought I deserved to be loved and with this day marking my 3rd year sober." Find out what else Demi said about Wilmer and see his sweet message he posted to her!