It certainly has to be hard for my wife. Trapped between two worlds. She goes out of her way to plan a wonderful birthday party for my oldest daughter. The first one that she plan in the four years since she decided she was 'done celebrating.' A lot happened for the both of us in the last four years. Yet, she still attends the meetings on Sundays, occassionally goes witnessing on Saturdays, and every once in a while wonders what her life should really be like and where she should fit in.
I share with her some similar struggles I have with Christianity so at least we have some common ground, but unlike her I can have a faith in God and celebrate the holidays and birthdays too.