(((((((((Max)))))))))))

I would definitely not look forward to seeing her again either. Hopefully she won't say anything or do anything else, and then you won't have to worry about how to deal with it. But it would be pretty normal to still be uncomfortable having to be around her. Hopefully she won't push it any further. If she does, think assertiveness. Assertiveness is kind-of a middle ground or a balance between passivity and aggression. Getting up and walking out is passive. Yelling at her is aggressive. An assertive response would be to firmly let her know that she is intruding someplace where she is not welcome, and you don't want to talk to her about it. You don't owe her any explanations or answers, and it is rude of her to ask for them. But you need to communicate that without lashing out and being hurtful, because yelling at her will probably just make her mad at you and then she'll care less about how she has made you feel and the impropriety of what she has done.

Good luck with this. It can be tricky!