They were seeing each other just before him and I started dating.
They're still friends but lately I've noticed him talking to her a lot more since we started having problems AND now that she's interested in another guy.
he suddenly seems very interested in her life, especially her love life. On top of that he's made sexual jokes with her, suggesting that they hook up again.
Most Helpful Guy
Using you as a rebound it seems.1
Most Helpful Girl
It Appears here, dear, that He has not Totally moved on from her. She is Now... Rattling his chains, this Girl Ghost from the Past.
Yes, be Concerned for now. Talk Turkey to him about this Chick. It could End up to be a "Triangle Threesome" Where you are Way at the Top, looking down, Side to Side, Stuck in the Midst of a Troubled Tide.
Good luck. xx1