Demi Lovato regrets talking about Joe Jonas

Demi Lovato regrets talking about her relationship with Joe Jonas.

Demi, who has just turned 18, has learnt a valuable life lesson – to keep some things private.

The Jonas Brother dumped Demi earlier this year, and the two went through a very public break-up.

“I learned my lesson,” Demi told People. “It’s not very much fun when you break up in a public relationship. So, maybe next time keep a secret.”

The former couple are currently on tour together, promoting new Disney film Camp Rock 2.

In other news, Joe has reportedly been spotted locking lips with Twilight actress Ashely Greene. Click here for a photo.