Lovato, 17, was left heartbroken earlier this week when the Jonas Brothers rocker called time on their romance.
And Swift — who was dumped by Jonas, 21, two years ago — reached out to Lovato with some words of support.
“Taylor sent Demi a quick text message, saying that everything happens for a reason, and it will only make her stronger,” a source said.
“She told Demi if she ever needed anything, to just ask.”
Jonas split with Swift in October 2008 and dumped her by leaving a voice message on her mobile phone.
Reports claimed Joe dumped Demi over the phone, but she has since spoken out to deny the allegations.
There are so many crazy rumors flying around today,” she Tweeted. “Joe and I did split, but it wasn’t over the phone. Things didn’t work out but we’ll remain friends.”
