Ok fine I'm gonna share my head cannons for Bitterban/Jesterban
Bittergiggle will often give banban the queen treatment while Banban is confused about it but treats Bittergiggle very nicely just confused on why Bittergiggle treats him like royalty this is because being a jester trying to make the queen laugh and take care of her influences him to treat his lover like that.
When sleeping Banban is always the small spoon due to his size while Bittergiggle is the big spoon but sometimes Banban tells Bittergiggle he wants to be the big spoon, Bittergiggle let's him be the big spoon however it looks funny because the height difference makes it hard to take it seriously.
Banban understands that Bittergiggle cannot control himself because Banban was once in that situation (and probably still is) not able to control himself due to his instincts while Bittergiggle has something similar except it's not that serious, but Banban still accepts him no matter what because he was in that same situation (it's about Bittergiggle not able to control his stupid decisions btw!)
Bittergiggle sometimes accidentally calls Uthman,"Banban" and tries his best to fix that and calls him Uthman however if someone elses does dead name Uthman (Sir dadadoo) he would be very angry and correct them.
Knowing the depressed Banban is, Bittergiggle will always be there comforting Banban and make jokes to make him feel better and Banban laughs at his jokes even if they're not funny, he will support him no matter what.
Bittergiggle is protective towards Banban, he is aware other mascots are very aggressive and some do not like him and Banban might be able to protect himself but most of the time he isn't, he can sometimes completely take control over his instincts but that is very difficult for him to immediately take control so Bittergiggle is beside him paying attention to his surroundings.
Everytime Bittergiggle is having a panic attack thinking about the mistakes he's done Banban will comfort him by caressing his head and telling him "everything is ok, you are worth it" and ending cuddling together for some minutes.
Bittergiggle lifts Banban up to smooch him, the embarrassed Banban blushes and smooches him back :3
Bittergiggle draws sometimes and Banban joins him even though they aren't good artists they will spend time together and have fun and they draw each other.
Banban monologues a lot and Bittergiggle may not be paying attention but he loves listening to his soothing voice.
Last one : every time Bittergiggle and Banban go to the theaters and ask for one large popcorn they always touch hands when trying to get popcorn and get embarrassed