was it my fault?

When I was 15 I had feelings for a 23 year old and I tried to get with him, I was all over him. I constantly flirted with him and we made plans to have sex.

When it was time he locked us in his car and gave me oral and fingered me ... I didn't say anything I just shut down. He didn't know I didn't want it.. but then again I was 15? My dad molested me during a lot of my childhood so I had that coping mechanism of just shutting down and going silent. Was the 23 year old in the wrong or was I?