Asswipe BF

My boyfriend had been going on about wanting to have sex or do physical stuff to eachother every night for the past 3 weeks. It felt like he was pressuring me into doing things and it felt horrible that he would do such a thing. I said at the beginning of the relationship that I'm not the type of person that's into that stuff. He accepted it. But now it seems he only wanted me for sex. I decided to break up with him yesterday because I was just not feeling the love anymore. He is blaming me for his 'sexual desires' because when he looks at me, he imagines us getting it on. I told him that I didn't want to talk about it anymore but he carried on sending paragraphs about it at least once a day. Bearing in mind we had only been together for 3 months, I felt he was expecting quite a bit from me. Was i right in breaking it up or should we have stayed together?