They're making the kiss and Yukine's reaction to it seem lighthearted, but I still feel like he's going to start remembering things from his past and that's why he can't get her out of his head.
Take is bored... but it is Kiun the true culprit because he does not hesitate to sick Take on Yato so that he doesn't have to deal with his bullshit... I do understand him though.