If it's one thing I've learned in the last 6 months, its that you NEED to express yourself!! If you don't, it will build up, and you will end up resenting her. Resentment can cause SO many problems! On that note, is there anything that maybe she's holding in? Any reason why she may be resenting you? Holding on to resentment can cause people to literally, lose physical attraction to their partner. PLEASE DO NOT KEEP THIS IN!! You NEED to talk to her! Get your feelings out there! Before it's too late.
May the wind always be at your back and the sun upon your face. And may the winds of destiny carry you aloft to dance with the stars