Her daughter is back in her life in a permanent kind of way and her mom see's her ex breakup as another kind of failure against her daughter, natural instincts tell us to protect our kids from everything that hurts them and at the moment the daughter is hurting from the breakup even if she doesnt show it or admit it, the mother is basically wanting to concentrate on the kid for a time.Yes its hard for you both but i understand your thinking,she has a hell of a lot to handle at the moment new job, daugther as such and maybe she feels secure in your relationship to ask for the time apart.However it could be the beginning of the end but you dont have a lot of choice she says she will leave if you dont,and well i think she means it we dont often give ultmatiums without already thinking of the consequences.
The question is do you trust her to give her the time she needs or do you think its the end for you both, only you know her and being optimistic i would rather give the person the time and take the consequences because hell you will lose either way if she is trying to end it with you or if she just needs time likes she says
A mistake is always forgivable, rarely excusable and always unacceptable.
Robert Fripp