The spay should help but jumping away from her onto a chair or bed is reinforcing the bad behavior – try putting on jeans and shoes before you go into her area so you don’t have to worry about a bite. Don’t let her boss you around or she may decide that she likes that she gets what she wants from you by being aggressive. Don’t be mean to her – but don’t give in either.
What I do with my female is if she charges me, I stand still and talk softly to her so I don’t spook her, but she knows she isn’t scaring me and I am NOT leaving her area just because she is being aggressive, instead she gets nothing but positive attention from me no matter what. If she nips me when I am doing something to her area, I tell her “no” (not yelling, just a firm voice) and gently move her head away from me. If she responds nicely to me afterwards, I give her pets and a treat. Important thing is to stay calm throughout it all as animals can sense our fear / anxiety.
http://www.rabbit.org/faq/sections/aggression.html
There is the house rabbit society’s page on rabbit aggression. Useful tips. 