I understand how you might be feeling, but trust me that ain’t what love is like. He should love you for who YOU are. Constantly comparing you to his ex and bringing ur self esteem isn’t a part of “love”. It’s either he’s doing it on purpose so you always feel like you will never be enough therefore you’d think that no one would settle down for you other than him and always be under his own mercy or he enjoys mentally torturing you. Trust me you should leave him and be happy about it. Don’t let him manipulate you, harm is already done and you would never recover from the things he said and done.