Is it normal that an ex boyfriend touches me sexually while sleeping?

I dated a guy for a short period of time, I also lost my viginity to him. I was in total love with him, he broke it off with me to go back to his ex. I was in my mid teens, we all hung around together in the same group, he ended up marrying her, we would all hangout at his and hers apartment. I would wake up at times with my shirt undone and pants unzippered, I even caught he trying to go down my pants. The last time was the one that gets me the most, I woke up with my shirt again undone, my nylons and underwear wrapped around one of my legs and a huge headache with no memory of what happen to me at all...I do know we stopped by his place about 11pm, he asked if I wanted a beer, I took it, drank it and laid down...I was in love with guy, so before I thought he just wanted or missed me...when that happen, I knew something happen, but dont know..so I never addressed it..I feel after so many years, very hurtful and so confusing...is it normal or am I crazy????