She may remain mum on the nature of their relationship, but Demi Lovato has no problem letting the world know how she feels in general about Wilmer Valderrama.
Spoiler Alert: she's a very big fan.
In honor of the actor's 34th birthday yesterday, Lovato posted the following collage on Twitter and included with it the following message:
“To the funniest, most inspiring, incredible man I know.. @WValderrama – thank you for helping me get through my darkest moments.. You truly are a light to this world and to my life.. Happy Birthday!!!"
Way back in August, Lovato and Valderrama were spotted at Disneyland, prompting speculation that they are back together.
Neither side has ever confirmed a romance, but an insider does confirm to E! News that the ring on Demi's finger these days is NOT an engagement ring.
Lovato, meanwhile, has spent the week making contact with other celebrities as well.
"I wish her the absolute best and I think she is doing a really great thing for herself," Demi said of the singer. "It's really great when you take time out of a schedule that everybody wants you."
Lovato and Ke$ha are two famous people who have gone to rehab, as rehashed in this slideshow:
1. Lindsay Lohan
Lindsay Lohan has been to a rehab six times. She completed a mandatory 90-day stint in the summer of 2013.
4. Britney Spears
Not long after the infamous head-shaving incident in 2007, Brit checked into a facility.
9. Kim Richards
Real Housewives of Beverly Hills star Kim Richards checked in in 2011 to deal with issues with alcohol.