The old disappearing act can drive you insane, trust me I know my 1st wife did that to me. She disappeared for a month and came back with a bun in the oven:heart-break:. If it had not been for friends and prayer I would have really lost it and probably caught a charge. The longer you let it fester inside of you the worst you will feel. You got to talk to her and get your feelings and concerns out. If she isn't willing to do that then you have your answer and I would move on. It's hard and very painful to do so , but its better than waiting to see if things will change.