1) Validate, validate, validate. Her feelings are her feelings. Doesn't mean you have to say you're wrong when you're not, just acknowledge her feelings.
2) Yes to finding out your legal status and how best to protect yourself if this goes south.
3) You "do and do and do" but maybe you aren't speaking HER Love Language? I did lots of things for my ex but Acts of Service was not his Love Language - Quality Time was, I needed to spend more time NOT multitasking and listening raptly to him lol.
