Wtf just happened?

So I broke up with my boyfriend.. ex boyfriend but I am waiting to move out until a few weeks because of finances… he has been hounding me for sex this whole time since I broke up with him... has been extremely hostile (almost kicked my ass yesterday) and verbally and emotionally abusive has been fucking with my head for years… well today he asked me to come to bed (works nights) because he wanted a shoulder rub and I figured okay because today we were doing okay and weren’t fighting.. he started rubbing my belly and my legs and I froze and kinda kept trying to move his hand but in a nice way to not set him off.. he just kept going back to my legs and kept going back to my legs… and then started trying to get my underwear off I told him no I don’t want to because I am in my fertile week and I’m not gonna get pregnant right before I leave.. and he just kept insisting and kept insisting and kept rubbing me.. so I said fuck it I will jerk you off? And he said no I want to fuck you before you leave and I was like no because this will be the one fucking time I get pregnant and he kept insisting and I said fine I will give you a blowjob.. he didn’t want one at first he just wanted to fuck me and he got up and came around to my side of the bed and got the dogs in their cages and said come on I want to fuck you.. and I said no and I got on my knees and said I will give you a blowjob… the whole time he just kept trying to fuck me and I was almost crying during it.. but I willingly did it… am I the asshole? Idk wtf is going on right now…