<human>: Could you distill the essence of the text into 1-3 sentences?

Me and my ex broke up a week ago, we had a 6y relationship and we're both 23. I broke up with him because he was very emotionally and borderline physically abusive.
during the relationship, i lost all my friends because of him except for one and he still has all of his.
After the break up, he begged for me back and obviously I refused, then I met him yesterday (i know this is a big no no, but I dont know why i did it) and he seems to have completely forgotten about me, he has tons of plans with his friends and stuff to do, and he seems so happy
I don't want him back but I still feel sad emotions about the whole thing, last weekend I was feeling happy and hopeful about the future and relieved that I don't have to deal with his abuse anymore, this week I'm a total mess.. what gives? why am i jealous that he moved on? I'm not jealous because Im not in his life anymore, Im jealous that me managed to just switch his feelings button to OFF and I still get sad about it.
Will this ever go away? or am I stuck in this pit of doom forever? :(
<bot>: Broke up with abusive ex and he seemed to have fully moved on from me while I still get sad and cry sometimes, I dont want him back just wondering if Im ever going to move on