One of my cats bit me and now my other cat attacks her whenever she shows her face. how do I rectify this?

I have 3 cats and everyone got along. I have a youngster, a lover and an anxiety, bipolar, pive aggressive cat. The bipolar was laying in bed while I was watching t.v. As I went to pet her she snapped and bit/scratched my hand badly which drew a lot of blood. I cried from the pain and the lover cat jumped on my lap gave me a kiss on my face and sniffed my hand. Not thinking anything, now anytime my bipolar shows her face, the lover attacks like an alley cat. Its so bad I have to have them separated in the house until I know what to do. Anytime the lover is unsupervised, she darts in search of my bipolar, who may be minding her own business, and attacks her. Help!