6 months pp, newly separated from my soon to be ex husband, and I just slept with someone else.

I need advice without judgement. Hy husband and I spit up almost a month ago. He was severely abusive and i finally left him. I have no intentions of getting back together with him. Tonight a guy I met came over hes super attractive. Tall, dark hair, green eyes and just all around a beautiful man. I havent been touched in a loving and un forceful way in so long when he started to do it to me I eventually caved. I dont know why I feel so guilty. I guess I just feel like my ex still loves me and has hope in his own way i will come back home. (Not hope I've given him) but i also have this sick feeling I'm going to get caught and hes going to beat me to a pulp. Was i wrong for sleeping with someone else? I didnt feel bad at the time. But now I feel like I did something terrible and i think it's just because of how my ex wanted me programmed. Am i a whore like he would say i am? Am i an awful human like he would say i am?