She brought it up a few months ago and I wasn't exactly receptive but she insisted it was the only way she would enjoy sex. At first it was just her being on top. Then choking started. Finally tonight though we got into an argument at work because she wanted to do an easier closing task and I "took it from her". When we went to go to bed she told me she wanted to blindfold me. That was new but I accepted. After I was "in position" she started calling me a bitch and said she wanted to hit me but wouldn't because she loved me. It was all very weird and I started zoning out to get through it but I feel like she just hates me at this point and is using kink as an excuse.
Also edit: we've been together 4 years