I'm panicking and need some advice? Please help?!?

I've had a long line of controlling relationships. I was single for over a year and did a lot of self-esteem work. About a year and a half ago I began dating someone new again. Things have going faboulsy and she seems so diffrenite than anyone else I've ever dated. Very caring. Last night an interaction occured that struck a cord and has got me thinking. She went upstairs and I stayed down to wash my face. She hollared down "you better not be brushing your teeth" (cause than she feels guilty for not brushing hers). I joked back that I was and her repsonse was "than your not getting any". I thought she was joking but when I got upstairs she acted mad at me. I told her I hadn't brushed my teeth and she was still angry, wouldn't even look at me and kept reading her nightly book. When she shut her light off and layed down I rolled over to give her a kiss goodnight and she simply lay there and let my lips touch hers (no kiss back).I wasn't looking to "get any" but she was actually mad me