Jungler Etiquette?

So I recently started jungling again. I havent jungled since season 2 and I have been playing Evelyn as my JG champ.

NOTE: I JUST started. Like, 3-4 games on Eve.

And I've noticed something, and I'm starting to wonder... why the fuck is everyone taking my camps? Last game my Heimer, literally, took my red camp while I was at my blue camp. I was only level 2, and I see this guy just hopping along by me to bot lane. So, that completely screwed my first jg clear.

So respawn, I'm top to help gank, getting scuttle, etc--there's Heimer again, TAKING MY BLUE. I ask him what he's doing, why, whats going on--nothing. Says nothing. Maybe he's behind? So I go bot, I'm lvl 6, why not, they're pushed in, enemy low, ez double with a Heimer, right?

I go in, bada-bing bada-boom--aaaaaaaand Heimer is literally just auto attacking under tower and isn't there to finish up Ashe and Soraka. Hasn't moved. And "support" Aphelios is no where to be found because, oh look, he's farming my wolves in my jg.

Has jungle recently changed to the point where I dont even get my own dang camps anymore? Like I literally had to start stealing minion waves between my teammate's deaths, or I had to constantly invade the enemy JG.

I main support for the most part, but it's gotten boring and I just wanted to try something new. But the past few games this has been the typical behavior, my team just stealing my JG camps--and it's not even late game, its literally like before lvl 10. If it's late game, its a free-for-all I don't care then, but I'm still trying to get my footing here.

Has JG changed that much that I just have to give my camps away? Any JG tips would be appreciated, I haven't played the role in years to begin with.