She's apparently been through a tough time since we last met. But we had parted ways before that due to her unpredictable behaviour. I'm sorry she's had a tough time but it doesn't change the facts of what went before. She's reached out wanting to meet for a coffee but I don't want to go. I don't know how to say no. Or should I go and see what she has to say? Either way, I have no interest in resuming the friendship. But I do want to let her down gently due the tough time she has been through.