Definitely not alone !... I am going through similar circumstances and it can be hard not to call that person or want to lean on the person whom has always made you feel safe. Unfortunately when we do those types of things it can take an emotional toll on the other person and they will want to pull away because they can't handle their own feelings or fix your situation . They can get exhausted from the emotional pull.
You are in a good support place here at pc , maybe when you feel that strong need to talk to her you can come in here and talk with us.