Leo is very different from the people he knows in camp. While Leo is older than the kids Jack prefers to hang out with, Jack finds it really easy to talk to Leo without getting judged and it also helps that Leo seems very understanding of Jack's situation? So Jack has a lot of dere feelings for Leo and is a puppy dog for him.

However, he doesn't want to be to unequal but he doesn't know what to do for Leo since all his skill sets are for kids and he doesn't know how to help older people that much. He's also lapping up all the attention because .-. yay people who can see me and talk to me.