Breakup: will he come back?

My boyfriend of 5 years broke up with me. Recently he’s been planning our engagement, but in the last month he’s been picking on my every little flaw. Even sometimes things that shouldn’t matter. Then in a bar we were in an argument drunk and he broke up with me. He keeps saying he would consider getting back together if I proved that I’ve changed (become more social), but he’s known me for 5 years and loved me through this. Should I do the no contact rule? Should I do the no contact rule except for sending him snaps of me being social? Do you think he may come back?
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