Random blush blush headcanon:
Logan lost his dad at a very young age and was raised by his mother who never remarried and she has every intention to keep it that way because she couldn't love anyone the way she loved her husband.
Myx speaks fluent vine and often does the Moist Critical "YEAH BABY" thing.
Cashew has two younger siblings that are twins. One boy, one girl, and they both have made it their mission to ruin his life (as a younger sibling myself, this is just standard procedure)
Logan is 100% the type to gently slap your butt. Not enough to hurt, obvi. He just can't resist. It's there, and it's cute.
Myx and Ichiban have collabed in some Markiplier Makes/Unnus Annus type shit.
Ace often does special baseball events for disabled kids and loves to help any wheelchair kids run the bases.
The fire station Logan works at participates in the local Christmas parade every year, and they decorate one of their firetrucks in lights and tinsel. The kids just love it.
The reason Reece acts so much like the Doctor is because he's a huge fan and wants to be like him (and I headcanon the Doctor is a real person in the world of Blush Blush because I damn well can)
Myx would take up jewelry making so he could make you an extra special engagement ring (and it ends up being another hobby of his).
Every Halloween Logan posts a million PSAs on how to keep kids safe (slay king)
In DnD, Myx HAS to play a bard. He refuses to play anything, and he loves to jump up on the table and start singing song (this led to him getting kicked out of many parties before he finally found one that didn't mind his shenanigans)