Mandy Moore and Adam “DJ A.M.” Goldstein dated for only two months in 2007, but it looks like that was long enough to form a bond.

“It’s back on,” a DJ A.M. source says in the newest issue of Us Weekly , on stands now. “Since the accident, it’s blossomed into something again.”

(Moore, 24, rushed to DJ A.M.’s side after the September 19 plane crash that left him with burns on his arm and scalp, injured Travis Barker, 32, and killed four others.)

Continues the insider, “Mandy said, ‘I like this guy a lot and I want to see where it can go again. Life is too short to not be with someone you really care about.’”

The pair haven’t been shy about PDA, either. A witness who saw the two at the October 18 Friendly House event in Beverly Hills says, “He was holding her hand, and they were rubbing each other’s backs.”

So after romances with other members of Young Hollywood — DJ A.M., 35, was once engaged to Nicole Richie, 27, while Moore dated Zach Braff, 33, and Andy Roddick, 26 — could the couple make it work this time?

Says a second DJ A.M. source, “When you go through what Adam went through, you need people you love and people who love you. He will never stop loving her.”

Source: Us Weekly