Is this really sexual assault?

Allie

I am a 14yr old female. I have depression and was in an impatient mental hospital for a suicide attempt. One day we were sitting in school and the boy across from me put his feet on my legs. The next day he started grabbing my legs around my knees. Then we went to breakfast. We came back and went to school in the group room. I was sitting next to him drawing while the teacher was reading an article aloud. He started grabbing my thigh (outside my pants) aggressively and I froze. I didn't tell him no or to stop. Then before I knew it his hand was on my vagina grinding very hard on it. He then took my hand over to his dick and made me give him a hand job. I would pull my hand away and he would forcefully pull it back to him. He took a break and then started on my thigh again. I picked his hand up and laid it back on his thigh. I then got up and went to my bedroom.