Credit: Demi Lovato/Twitter Photo: Demi Lovato and Wilmer Valderrama Intimate Selfie

Last month, there were rumors that Demi Lovato and Wilmer Valderrama were getting engaged. He apparently even bought a ring from Tiffany & Co. with the engraved message, “With you and by you always." So romantic, right? But before we start dreaming up color schemes and flower arrangements for their wedding, let's remember that the engagement was never actually confirmed. What a buzzkill.

The good news is, Demi Lovato sent the rumor mill back into action when she stepped out in Los Angeles on January 30 with a diamond ring on her engagement finger. She could just be wearing costume jewelry, but It just so happened to be Wilmer's 34th birthday yesterday. Could he have popped the question, making it an extra special birthday? Time will tell, but we do know that Demi had some really sweet things to say to Wilmer on his birthday.

"To the funniest, most inspiring, incredible man I know.. @WValderrama,” she wrote on Twitter, along with a photo montage of the two of them. “Thank you for helping me get through my darkest moments.. You truly are a light to this world and to my life.. Happy Birthday!!!"

Wilmer replied, "Who needs presents when the gift of you is real to us all. Thank you for the blessing of knowing you."

You guys! If wedding bells aren't already in the picture for these two, then we think they should be. What do you think? Sound off in the comments.

Credit: Sharky/Splash News Photo: Demi Lovato in Los Angeles, California on January 30, 2014