Yumi and Kagome in “Unfinished Business”

Maybe he's moody and jealous because he's unsure about your feelings for him?

Kagome

If that were true I'd be thrilled. But the deal is, he's still totally hung over his first girlfriend, and doesn't have time of date for me. (thinking) Wait a minute. That doesn't make sense. If he didn't have time to date for me, then he wouldn't get jealous. Especially since he's still hung up over Kikyo.