How do you handle an "Ex" best friend?

She seems like the type who cannot handle certain emotions. Some people are not capable of dealing with sorrow/grief/sadness. I had a friend like that, When I would become down she would avoid me like I had the plague. I'd just continue to be her friend but, I'd seek solace in another friend. Some people just are not meant to be there. I'd look for more sources of support for myself, I'm sure there are people who would be there for you no matter what. Yeah, Those friends are hard to find but they are there!