Dear Christian860, People grieve in very different ways. It sounds like your girlfriend is very angry with God for taking her Mom and she's taking it out on everyone. I pray in the Name of Jesus that He would open her eyes and show her what she is doing and perhaps some reasons why He took her Mom on. I believe in time He will. I have lost some dear ones and the Lord has shown me some of the reasons why He took them, and my sister also lost her baby and was very angry with God until He also showed her some of the reasons why. Keep praying for her and give her lots of space to walk this out. I believe she will get better sooner than you think.