Let me put it this way..."if" she hands you another area of physical improvement...I'd probably say it's a stall tactic and call her on it....or at the very least ask if what she's wanting you to do really tints the way she sees you or is attracted to you.
Now, if she comes back at you and tells you something more personal such as a need of hers that you are somehow not meeting and that could be in areas of communication (which we already know you two need to work on right?)...quality time spent together, acts of service ("you don't ever buy me flowers anymore" for example), Words of Affirmation (Dang honey! You look great in that outfit!) etc....THAT would be something you really need to pay attention to and work on....that would be her telling you something she needs to feel loved that somehow she's not getting.