Landlord responsibility with fleas?

So I’m both roommate/landlord and our tennant recently brought to our attention she was being bitten by fleas. I was not aware we had a flea problem. Her current month rent was 800 (july 20-aug 20). So notified me of the flea issue on Saturday July 25 (about 1.5 month into her stay). I called an exterminator that monday and they came on July 29th (wed) to spray our property (3 working days later). During this time, she stayed at an airbnb/hotel for 2 days. I already offered to return her ENTIRE rent of 800$(including July 20-25 - she stayed at our place, and this was before telling us there was a flea issue), immediately cancel her lease without punishment, return her deposite 200$, and offered an extra 100$ to cover her stay elsewhere for 2 nights)

I feel like I have gone above and beyond what is expected. I have resolved the issue within reasonable time (7days), covered her stay at an airbnb, AND refunded her entire rent and deposit (1100$). Do you feel like there were more I either should have done (legally) or morally? She is asking for more money (including laundry service)