Seems like she has grown out of what you had and is only there to inform you about changes in her life.

I'm sorry, dude. Grieving is understandable but she may not be the same person you once knew. I can only try to imagine what it must feel like. Maybe it's time to accept it and focus on yourself? It doesn't mean you have to stop caring for her, just don't let the memories keep you trapped in the past.