Months ago I was snooping on STBXH socials. He's in a relationship with a woman he values? and not the one he cheated with. When they first got together with new woman he changed his profile picture to theirs. Unfortunately, a few weeks later they broke up and he proceeded to post a ton of quotes indicating he's hurting. This is something he didn't do when our 6-year marriage ended.
They got back together after a 4-month break and he immediately deleted his SM. And 6 months in, he is still standing strong. I presume she asked him to get rid off the accounts.
I'm very surprised by his behaviour because we never had each other on SM. He was generally a bad husband (cheating, lying, ghosting etc. typical narcissist) and father. He chooses to have very minimal contact with DC and only visits about twice a year.
I don't think people can change in short months but maybe he has?