>>107882581>that spoilerThis actually highlights the similarities between Marco and Dennis. They both come from abusive households, albeit in different ways on different scales. The Avarius family actively harasses children that don't conform, whereas the show implies that Marco's parents, while "cool" are broadly negligent.
In terms of how Monster!Star would interact with Dennis...
>Dennis is embarrassed by his parents, who are addicted to stickers and living in a swamp>tries to coerce the monsters (Talon?) into pretending to be his fancy bird parents, tricks Ludo into lending him the castle>Star finds out (most likely Ludo did something dumb)>offers to let him stay at Butterfly Castle when his dad is being a jerk>Brudo is upset that Dennis is talking bad about them to the royals>kicks him out>Dennis is on the front steps
>"You can't do this! This is my home! You guys are my family!"
>Star appears
>begins walking him to Butterfly Castle
>"Not anymore." 
