I wanted to say that is awesome of you to be there for her....you are doing what you can, but don't forget it may be her insecurity for getting rejected from others talking not just how she thinks about you. Plus I think as a caregiver and supporter is is just as important for you think to think about getting yourself maybe some counseling for coping with her and give yourself a break too. You are doing more than many husbands to for their wives and I think that is wonderful....it would be great if we could all have someone like that in our lives. Even if it is hard to keep reassuring it seems like that is what she needs to hear from her so try not to get frustrated, it is not her thinking you are not doing enough but fear and her knowing she can say that and you won't go away. Every woman needs regular reassurance whether it be about if their but is big or if you still love them. You are doing great, don't forget to take care of yourself at the sametime!
Jennelle