Mr. Jealous

So, lately Gabe has turned in to a possessive and jealous little guy. A friend and I started a little 'kid-swap' a couple days a week where we watch each others kids for an hour or 2 a couple times a week so that us moms get a few hours to ourselves to get stuff done or just relax. She has a 1 year old(Sam) and a 5 year old(Zoe) (also a 6 year old(Presley), but she's at school), all girls, that I watch. They are great kids and Gabe really likes them too. Except when they play with his toys. It doesn't matter if it's a toy he never ever plays with. Suddenly they are playing with it and it is his new favorite. But when they play with his favorite toys, sometimes he's ok with it, but most of the times it is freak-out time for Gabe. But he gets even more jealous when I play with the girls. Especially if I pick up / hold Sam. Talk about a tantrum. He just glares at Sam and looks at me bawling and screaming. It can actually be slightly entertaining. I admit, I have picked her up a couple times just to provoke him. Plus he needs to learn to share. Lately, even Adam can't give me a hug with out getting the skunk-eye from Gabe and a slight tantrum. It's getting a little ridiculous. But kind of funny. Hopefully this phase doesn't last too long...