if your ex was a jerkwad, ignore them. if they weren’t, sit down and have a conversation with your gf about if she actually likes you, and say it’s okay if she doesn’t anymore.
HELP ME DECIDE; MY EX -WHO KNOWS MORE ABOUT ROMANCE- ASKED ME OUT; MY GIRLFRIEND(?) WHO SEEMS TO BE FORCING HERSELF TO LIKE ME, DOES NOT KNOW WHATS GOING ON; OPTION 1; OPTION 2