I dont know if he lied or what...

So my boyfriend of a year and 9 months decided to break up with me a couple weeks back. Im with a new guy now who is amazing but my ex went on a date yesterday with a girl he use to hang with when we dated. He always told me there was no feelings nor was he attracted to her. For the past 2 weeks he was like i regret leaving you and all that which i ingored cuz im really happy with the guy im with now. I just feel like i was played when my ex and i date and i keep having a bit of anxiety issues after i found this out. My mom thinks hes trying to get a rise outta me but idk cuz i was just like good luck on your date and im happy your moving on.