Could someone explain exactly what happened? I'm not good with understanding deep stuff.
Sayaka was all despair-ey. Kyoko tries to snap her out of it and get some of her old spunk out by fighting her, threatening to take advantage of her, etc, but she seems to be beyond caring. Kyoko realizes this and breaks down. Sayaka discovers Kyoko is just as far gone as she is Sayaka was her last hope but now she too has lost her innocence. Some of her old self is awakened and she sympathizes her, decides to show her "tough love" or something. She bitch-slaps her but it's okay because right after they have sweet, sweet sex. Sayaka doesn't get witch-ified, and three-four years from now, they probs get happily married. At least that's what I got from it.