I’m so sorry your hurting. Trust me when I say in order to make him eat his words you have to act like this is his loss. Cry scream yell when you’re alone but on social media and as far as he’s concerned everything is fine bc he’s so blatantly making a mistake you wouldn’t even stress it. I spent so much time researching articles when my ex broke up with me and every single thing said DO NOT let him know how devastated you are bc it puts him on an even higher pedestal as the dumper.