I think Sark took their relationship more seriously than Allison did. It looked like she had feelings for Will because she was crying when she stabbed him. That's really twisted, crying while you're stabbing someone you like. I thought Sark was a little more humorous in these episodes. I thought it was really cute when he was talking to Irina in Second Double. Just the way he said, "I hope that's the case, that would be nice." made me want to squeeze him. And then in the Telling when he was like, "Provacillium to the rescue.", he was lighter than he usually is. I don't know about the rest of you, but by the end of the kissing scene I was panting.