Should I confront her?

im very regret for trying to get back my ex she fooled me and did make me like a joke and dealt with me like I'm a her toy. I heard her sister died so I thought it's good idea to be there for her and I was there she Said thank you and I appreciate it we were talking like every other day she was acting sweet but I didn't know she was planning to revenge for shit reason she planned to pull me toward her then suddenly blocked me and ghost me ! All this because she wasn't happy enough when she knew I'm doing well in my life and I looked much better than before and not like her falling down generally speaking I lift people I'm not an angel but I'm humble and kind and I easily make friendships but she's the opposite she shame people and she's kinda of dark very dark and evil inside.
Anyway she was sweet then suddenly she blocked me I asked her so many time why you did this but she didn't answer my question at all no explanation at all. Should I go and ask her or just leave it? Im really feeling angry
Should I confront her?
Post Opinion