I recently lost my mother a year ago, and I got thru some hard times thanks to my fiance. She has always been a private person(at least for the three years I"ve known her) but, now all of a suden she wants to hang out with new friends and go on girls nights and I find myself feeling neglected or like she's outgrown me. We never go out anymore unless it's planned and it's got me feeling a little troubled. What's my problem?
First of all, why do you think you have the problem when she is the one changing? You did not change, she did.
There is nothing wrong with you but you must understand that people come into our lives for different reasons. This person might have come into your life to help you through this death. Think about that because it seems that things changed after the death.
In the meantime, talk with her and let her know how you truly feel and see what her answers are.