One of my close friends has really bad boundaries. It's like she can only do too close or strange and distance. She's right in my face - constant contact, double messages, requests to spend time together, intrusive questions. Then whenever I push back she will withdraw totally, acts odd and cold and takes a while to come back out of her shell. There are long periods when it's the sweet spot in between, but it never seems to last.
Does anyone else have any advice on how to deal with this? Why are some people like this? It's confusing, hurtful and exhausting.