has she given you a REAL reason that you aren't listening to or didn't hear?

Usually women give HINTS as to what is bothering them before they just cut off a relationship.

When was the ACTUAL last time she indicated thst you meant as much to her as she means to you (in other words was distance building up that you didn't pay attention to?)

Looking back & analyzing what went on always helps for handling future relationships.

I doubt that it is JUST PMT that is the cause but really can't tell not having observed the relationship & what was going on.....best to distance. If she wants to come back she will but if relationships aren't a 2 way street they AREN'T a relationship & you just have to let it go & use it as a learning experience.