Is it normal i didn't want to have sex with her?

Recently I started using this online dating app,I'd never tried one before so I thought what the hell let's try.
Anyways I met this girl online and after about a week of us chatting I went to see her and go on a date.
Things were going great, we got along, she was reasonably attractive, and she was SUPER into me. I thought it was all fine, but before long I started feeling bored, she was so into me that I actually felt almost annoyed by it.

After a while we went to the motel I'd rented(she lived a ways away from me so i was staying the night) and we made out, i got her naked, and then we started into some fairly kinky shit. I'd never even done this stuff before but it was great, I was pulling her hair, choking her with my belt, I tied her up with her belt, she was having fun, I was having fun it was great. I forget how many times I helped her get off, it got to the point she was literally begging me to fuck her, and then i fully realized that I didn't want to.

I was and still am a bit confused about this. I enjoyed what we did, Exploring my dominant side and her submissive side was great I really liked it but it felt like I was playing with a toy not a person. The thought of actually having sex with her repulsed me, because in my mind because she was so willing, because I'd had to work so little to get her in my bed, It seemed more like I'd be having sex with a doll rather than another person.

I tried to tell myself it was fine, I was just nervous, or something like that, but I wasn't nervous, I wasn't scared, I didn't have any physical problems, I was rock hard, I just did not want to have sex with her, the thought of doing so both repulsed and utterly bored me.

So i didn't I told her I didn't want to have sex and I didn't (btw note to girls who turn down expecting boyfriends, I now have more sympathy with you, that's some hard and awkward shit to explain to someone. Especially when they're a nice and sweet person like this girl was.)

Anyways I just want to know Is It Normal I had a girl in my bed literally begging me to fuck her but I turned her down?

Ps please no comments on questioning my sexuality I'm 100% straight and I'm asking a serious question.