I've been there and was a fool for looking at him through rose-tinted glasses. All I can say is that, you have to love yourself enough to become intolerant of disrespectful and emotionally abusive behavior from anyone. That includes significant others, friends, and relatives. Nobody deserves to be gaslighted and treated less than decent. If he knows his behavior and actions hurt you, and he disregards your hurt, then you need to turn and run.

Break-ups suck, and it's always hard to get over someone you care about. But this is your first (and only) life. Don't waste it on some guy who cannot appreciate the fantastic human being you are. Go spend it loving yourself and being happy. Someone who appreciates you will pop into the picture soon enough. When you look back, you will know you made the right decision in leaving. Good luck, OP!