Is this assault

Im just gonna get straight to the point. So I was hanging out with my ex today and we were cuddling. We ended up making out. He started touching me and I told him i didn’t want to do anything. He said okay and stopped. But then he started again. I didn’t know what to do so I tried to push his hand away but he just moved his hand down on me more. At this point he started trying to take my pants off. I wasn’t letting him. I locked my legs together so he couldn’t. But he was able to get them down enough to basically have my butt out. I didn’t know what to do so I layed there. He layed down and then a minute later said he had to do something. I thought he had to grab his phone or something. But instead he just stayed on the bed. I didnt know what he was doing so I layed there. Until he started touching me again. So I glanced up to see what he was doing and saw that he was jerking off on me. I was in shock so I just froze. And then he started trying to finger me. I jumped and then continued to lay there, frozen until he was done. He finished on me, cleaned me up, and then laid next to me. I was holding back tears. I didn’t know what to do. I ended up waiting a few minutes and told him my mom needed me to come home so he needed to drive me there. Now I’m sitting in bed shaking. I don’t know what to do or what just happened. I know he would never purposely hurt me. But I’m so confused now. I don’t know what to do. Did I do something wrong? Please tell me I’m so confused.