I think you have every right to feel anger. It is part of the grieving process by the way. ( disbelief, bargaining, anger, depression, acceptance.) Aside from that little lesson, you want to work things out and she is wavering - that has to be hard on you.
At least you did your taxes together - I offered to figure out what was best for us, filing joint or sep, and he decided out of anger toward me to file sep. He didn't want to trust me or work with me.
