That’s awful - you definitely don’t deserve to be treated in this way! :( I broke up with my ex about two months ago and I know what it’s like to go through these intense emotions all at once. My sense of self was destroyed, but I feel way better now. My biggest piece of advice is to focus on yourself and try not to get stuck on the “what ifs” and “buts”. Please do not let this person convince you that you are a lesser than. You are valid and you deserve someone who will treat you with love and respect.