After visiting Demi Lovato in rehab, Wilmer Valderrama is determined to help his ex stay sober.

TMZ reports that the actor, who dated Lovato between 2010 and 2016 before the two called it quits with a public statement, has made it a personal mission to help the pop star keep her sobriety upon her recent return to Los Angeles.

Sources tell the tabloid that while the two haven't been seen together in public, they "communicate regularly," talking several times a day. The sources also claim the former couple have met up a few times in person as well.

"Valderrama was a crutch for Demi through her hospitalization and visited her in rehab too ... and continues to do so," the outlet writes.

Lovato is reportedly currently splitting her time between a halfway house and a private home in LA.

She's also been spending time with fellow sober buddy Henry Levy, a fashion designer who previously struggled with addiction and met Lovato in rehab a few years ago.

12 Celebrities Who Are Sober

More From MIX 108