Awww, I'm going to miss Jack, too! He was SO GORGEOUS! If I had seen him in a shelter here, I would've snatched him up in a SECOND! He's just the kind of mix that attracts me.
I'm sorry that Pumpkin is missing him!
I'm not sure what I'd do about that. Does she play with your other dogs at all? Maybe encourage time for her to be around her favorite of your group? Then again, that might be hard on her when she goes to her new home... maybe just wait it out, then?