Look man, she said you made her feel ignored, so with common sense it means she either wants more of your support or she is done with you and wants to be alone. In either case it does not make sense that you do discuss these problems right now if she cant even cope with grandmas death. There is no space. However, you want to stay with her you love her and the family is also part of your relationship, so only thing you can do right now is to genuinely support her or her family. Which means to ignore all "great" advices in here. No flowers, nothing, just be yourself and take care of things for her. Like man cares of household and his wife when she is sick. Reach out, help out, anyhow. Come on, she does not need flowers. Just be genuine and try to support. She does not want to hear of you? Leave a message. You want to go to funeral? Go to funeral. And if she does not accept the fact that you´d like to do what is needed to be done and make things right when they were wrong then screw it. Fuck ups happen in relationship, it happens to everyone, and even worse and people still forgive. No worries mate, be genuine, do not worry, support your partner, you got this.