I mean, I can try to keep my HP up, but 1) I still heal less than she deals and 2) I am not dealing damage if I am healing. Also, item or two? I am definitely missing something if it's possible to buy two items with the amount of money you get.
It may be, and I may just be missing something. I don't think her dealing more damage than I heal is necessarily a balance issue. The balance issue I see is that whatever her health is, the bar doesn't appear to move regardless of how much damage you deal to her, which means either the bar is visually bugged or her health is insanely high.