Honestly, I think it's very toxic for someone to get mad at their friend for visiting their loved ones. It's possessive and damaging, I don't think she should have originally been so angry and cold towards you for simply trying to stay connected to your relatives. I get that maybe she had feelings for you or really needed you, it wasn't fair to put all that pressure on you to stay when you have your own life to live. I think you deserve better tbh.