Can you talk to her about the fact that she is taking her anger out on you? And explain that it's hard to have empathy when she is transferring her anger at her ex onto you? Or have you already? Your feelings are perfectly understandable. She needs to understand that you also have a daughter to focus on, and while you can sympathize with her plight, it can be difficult to manage both, especially when she's angry. I hope you find some resolution soon. (((hugs)))