I'm afraid I'm not going to be much help either. But here goes. I still have to watch Layla and Jake (Lacey's not much problem) Anything involving food or toys. Their size difference (70lbs/20lbs) makes it nerve wracking. But I never had a real issue with what appears to be jealously or perhaps Joey felt he needed to protect you? I know when I got Jake, he would play fight with the cats and Layla felt the need to step in. I wasn't sure whether she was going to go after the cats or Jake! I made it quite clear to Layla, both sternly, but reassuring her *I* was the mommy and *I* would handle it. I do know you have to make sure Joey knows that behavior is NOT acceptable.
There are people here who could offer you some advice as soon as they see this. Try not to be too worried, and just watch them closely. It will work out. {hugs}