Demi Lovato And Wilmer Valderrama Split Again The singer of 19 years is likely to feel what is being called a broken heart. View the content of the message he wrote via Twitter on Monday (9 / 1) and then, allegedly Demi Lovato has ended the relationship with her ??boyfriend, Wilmer Valderrama. “Loyalty is EVERYTHING … I am very grateful to my friends who are always there for me,” wrote sake. A few hours later, she re-post the message in the form of quotes that have been revealed Marilyn Monroe. “A wise girl kisses but will not love, listens but trust and go before it was abandoned.