People have said a lot of things about Wilmer Valderrama over the years, but something you might not have expected to read is "I really wouldn't be alive today without him." But that's exactly what girlfriend Demi Lovato wrote in a heartfelt Instagram post celebrating Valderrama and her third anniversary of getting sober. "I wish I could put into words how grateful I am for this man right here. But my love has grown to a level that words could never possibly express how much this man completes me," she writes. "He's loved me the way I never thought I deserved to be loved and with this day marking my third year sober. After sharing my ups, putting up with my downs and supporting my recovery, he still never takes credit and I want the world to know how incredible his soul is."