There is no rhyme or reason for what the MLCer does or doesn't do. She may have become very resentful and jealous after seeing the photos of the vacation and trust me, they do not like for us to have a great time and have fun. They want us to be as miserable as they are. She also may not have been happy w/the fact that you and the GF were at a wedding together. Even though they don't want us, they don't want anyone else to have us either. Sick isn't it?
I wouldn't worry too much about being unfriended on FB. Right now, she may think she's punishing you because you are doing well and she knows that this action will bother you. Don't let her see you sweat! Also, she doesn't want to be reminded of what she's walked away from.
Continue as you have been, don't allow her behavior to change anything that you are doing. Keep moving forward and being the best you can be. She'll get over her little snit when she sees you aren't reacting to it.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
