I don't know what happened!!!!!!

Ok so today is my boyfriend's birthday. Of course I'm gonna give him so good ole birthday sex since it's been a while that we got down and dirty. Anyway, I put on some sexy lingerie and he wanted me to do a strip tease. I flat out refused cause I'm shy, awkward, and have two left feet. He was a little upset, but then we started making out he started teasing me. Before I go on, I want you guys to know that I like rough sex. Sorry, I meant to say I LOVE rough sex. Anyway, he starts smacking my ass super hard and choking me and slapping my pussy. I'm like a gushing lake at this point and I just really want the dick in me. Then he starts ramming in me. He's going full force and so fast that I can't even catch my breath. By now he has me in a third different position and I'm just going crazy cause it feels so good, but then I did the most unexpected shit ever. I started crying.

Yes, I started crying. He immediately stopped, picked me up and laid me on the bed (we were on the floor), and got ne a bottle of cranberry juice. He kept asking me what hurt, but I was crying kinda hard and couldn't answer for a minute. But he didn't hurt me, I didn't feel any pain at all. I'm so damn confused about what happened and I hate that I did cry because he was freaking out and felt so bad about himself. I assured him a thousand times that he didn't hurt me and I'm so glad he's relaxing now. But has any of this happened to any of you ladies. I'm still confused on why I was crying. Any guesses?