"I never had a cat before," Buffy explained with a bit of urgency. "But unfortunately, neither did Spike, so it was kinda like the blind leading the blind. But I've been giving him tuna and water, so...that's good?"
Setting the kitten back down again, who made a mad dash for the bag as he began to flip and tumble around it, Buffy looked back to Bela. "Yeah. There were some...issues that I had to sort through, and I had to leave to do it. But it's all over now, so we're back." No need to mention the fact that she'd been turned evil by a demonic wish a villain had made.