sometimes after a time, sex becomes rushed. It makes it feel routine and not worth savoring. slow down. really slow. like back when you were scared cuz you didn't know what to do slow. kwim? try it, see how it goes that way.

otherwise, she may have stressors you aren't aware of. it's important to give her enough space.

it's not "normal" to not want sex but she might consider visiting her doctor if there's no other reason. it could be medical.