I split up with exdp several years ago. We had multiple issues, such as lack of intimacy, him not wanting to marry me etc. All coincided with us having children, we had been fine prior to dc.
Since then we have been amicable, he pays maintenance for our dc and we live locally so co parent well. A few months ago I started dating and am happily doing so, he knows this but I don't tell him specifics as not really his business and would be odd to share romantic information with an ex.
Recently my ex has become quite full on though. Being kind and helpful with diy, suggesting going on family holidays etc. He never moved on and dated again. When he collects dc he's tried to hug, grope me etc and when I protest he says things like 'oh you used to love us being together'.
My instinct is that he knows I'll be in a serious relationship at some point and he doesn't want that, I'm also worried he could try to scupper my dating. He didn't used to care though. Is this his pride at stake? He said I'll never meet anyone better than him on my dating 