I don’t think it will work, I know it really hurts.
You have’t been together long enough for him to have an impression of who you are. One negative experience can destroy 10 positive ones in the beginning stages of a relationship.
It sounds most like you never got over your last ex, didn’t fix the problems that destroyed that last relationship and because of that, treated this new man poorly.
Curiosity, him viwing your social media is not the same thing as him being interested still