To contact or not to contact

Ego, selfish or stupid. Which one do you think I am. I'm hurting, so much. I lost my ex-gf and now I lose my good friend. Wonder why all this happening to me. I switched my simcard to the one I bought just for my ex-gf hoping there were misscalls or even message notification, still, none. I'm kind of, losing hope. I don't know if it's right for me to contact her, because I might hurt her even with one call/miscall or sms. I can't seem to decide which one to do, I want to ask her wellbeing, but i'm not brave enough to act. Should I contact her back or not? What say you?