Is this considered rape?

First off sorry if there are errors in this question I'm typing from my phone. I don't know what to think. I'm so confused....my friend thinks its rape but its my fault it happened. I went over to this guys house I liked and we were just hanging out for a bit. We were just talking and he started commenting on my body saying it was gorgeous etc. He said he wanted to give a massage while I was naked so he could also see it and admire it and give me a massage so I could feel like a queen. Well I had a serious lapse in judgement and went along with it because I thought it be nice to get a masage from a guy I liked and to be admired. So stupid me undressed and he told me to lie down so he could massage me. So he did for a few moments until I felt him go inside me from my butt. I told him what are you doing? I told him to stop and it hurt. He said he was sorry but then he put his head inside my vagina and I was like no stop...I don't want to do this! He just told me to relax and he wasn't going all the way in. I told him I didn't care and to stop I am not ready to do this. He just kept on and I was like seriously stop and he just kept saying relax. So I just kept quiet after that and let him do it. I didn't know what else to do....I should have fought him or something but it was my fault for taking my clothes off in the first place. I was stupid and naive....I don't know what to think. After it happened I just pretended like nothing really happened even though inside I never wanted to go that far. My friend think I should see someone but I don't know I mean I was practically asking for it. I feel so lost now and low what would this be? Should I just forget this?