I know it’s such a silly question, but can they get jealous?

Whenever Asriel is out for playtime, Bombur will go to his litter box and stare out into the room, and watch everything that Asriel does. If I’m giving Asriel attention, Bombur will smoosh his face into the bars even more and look almost anxious while he watches. He is the farthest from the action in the room, as our bed is in the top lefthand corner and his cage is in the top righthand corner. I have Asriel’s cage closest to the bed to help him get out of his shell more. 

Asriel is almost similar, except his a lot more “vocal” about it. Now that Asriel has turned into Mr. Lapbun Lovebun, he is all about getting his snoot rubs. Unlike Asriel who tends to hop around the room and explore more often, Bombur will hop on the bed and eagerly hunker down for a long cuddle session. When these cuddle sessions occur, Asriel will start biting the cage near where we are, and he’ll stick his nose so far in between the bars I think he’ll get caught. 

If you go to either cage while the other bun is out, just to give the other one five seconds of attention, whichever bun is out will follow me and stand on my feet, and periscope for my hand.