Gf might be going to jail for 6 months to a year for snapping at a stalker.
I love her so much, what do I do?
How about you not snap at the people trying to help you. If your girlfriend broke into some supposed 'stalkers' house, it says a lot about her character. If she yelled at someone on the street who had been following her for hours and chased him into their house, this also says a lot about her character.
Don't stay with shitty people, they'll just fuck you over.