I have a couple of "suggestions" ... first, make sure that you are projecting your feelings about her being beautiful and sexy at various times, not just times when she might be feeling like you are telling her that because you want sex in the VERY near future. Also, if it is determined that she wants to do something about changing her self-image at this time, then ask how she would like you to help, maybe have some suggestions to check with her, but don't do it with any pressure behind it ... just a few thoughts.