Hi ukayjo.
I'm not female , so I don't know if my thoughts help ... It's just my 2 cents.
I can understand how you feel you are being pushed away , but it's possible that might be the wrong word for what's happening.
I have to "recharge" every so often . meaning I really need to be alone in order to have energy and even the will to be with another person .... I don't have a cycle though , so that's interesting/ different to me .
I'm those times I would welcome a text saying something like
" I know you need some time alone and when you are ready for company -I'm here."
Then just let me contact you .
I wish you the best of luck , and yes if the recharging cycle is more than you can accept then moving on would be best . if she needs it the way I do , it won't change.