OK so my ex broke it off but were still friends. When were on the phone sometimes she brings up the reason why she broke up with and I told her I was sorry. She also asks me if I like anyone but when I ask her she doesn't want to tell me, she doesn't ever mention any guys names for some reason. Why doesn't she want to tell me?

Its none of your business. Neither is what your doing her business, but you answer. This friendship with the ex is not on EQUAL terms. That is a red flag you need to pay attention to.