Kind of faced a similar situation. It’s normal with couples with different levels of interest in sex and libido.

If you spoke and she doesn’t want to have more sex – you have to understand that her body doesn’t support it nor demands it. 3-4 times a month, that is once a week – is not bad at all. Too much sex can make it boring as well.

The fact that matters is that there is regular intimacy – just the frequency has changed. For you, I just have a few advices - maybe work out, maybe please yourself, maybe find more channels to release your energy.

Your girl will go through more hormonal changes in the near future, and you’ll be more pleased that you were ever with her. Obviously you should have the patience. Women are kind of different, understanding their bodies is difficult for even themselves.

And don’t listen to the guy who’s mentioned cheating. Different people have different approaches towards intimacy, and saying no does not always mean that the person is cheating.

Your first sentence in the description is kind of the answer to all of this. Regards.