What Happened to Our Friendship?

Hey loves! 
So, for 6 months I had this incredible relationship with I guy who I truly believed was my best friend. We talked for hours every single day and there was nothing ever sexual or romantic between us. I had spent the night at his house plenty of times (w/o our parents knowing) and one of those nights we ended up cuddling/spooning on the couch (bed) watching tv, it was honestly one of the most amazing feelings I have ever felt. Just having our bodies so closely intertwined made me feel insanely secure and it just felt right. We were like that for about two hours until we decided to go to sleep. I layed down and he layed beside me, we played around with our hands and I ended up falling a sleep with his hand around mine. It was perfect. In the morning we were hanging out and somehow we both ended up on the bed watching Netflix off of my phone. After a while I closed my eyes and woke up to his hand down my shirt, squeezing my breast. I didn't want to embarrass him so I pretended to be asleep, he played around with my boob for a while and then started feeling around my butt and inner thigh, he tried sticking his hand down my pants but I moved a little and he pulled his hand away and stood up. When I got up we both acted like nothing happened and went on with our day. We went from talking every single day, morning to night, to not talking at all. He completely cut me off and blamed it on my "immaturity", I've never cried or been so hurt in my life. Here goes the guy that I trusted would always be there for me, leave; being incredibly hypocritical to things that we had talked about before. It's been two months and although we talk now it's not the same and he's also not willing, to talk about what happened... All his friends are trying to get it out of him and supposedly he just gets "sad/mad and confused" when I'm brought up. Has this happened to anyone or does anyone have good advice for me? Thank you for taking your time of day to read this, I appreciate it greatly.