Everyone wanting to be lil gumis favourite so he spends more time with them when he regresses, then doing the most twisted and disgusting things to him. It annoys Everyone how he's always stuck to gojo and is too shy to be with anyone else. But eventually he gets comfortable with everyone and they make it his nightmare. It being a coping mechanism his brain picked to relax his mind but it turns into something that drains him instead because of all the activities. Him growing to despise it and forcing himself to not regress because he's completely at everyone's mercy and they take advantage of it. But no matter how hard he tries it still happens, sometimes by its own or sometimes he's forced into it by others. Them creating triggers for him that quickly catch up to his brain. Telling him stuff like "wanna color together?" "Where is your Pacifier?" "Wanna cuddle?". And he hates it because its uncontrollable and everyone's just abusing it like its entertainment. Everytime he wakes up after regressing he feels more tired than better which just makes him regress even more. He complains to gojo about it but he only tells him "I can't always be with you". He argues how gojo just used to lock him in a room with his stuff if he had to go somewhere instead of leaving him with others, but he's just reminded of how he hurt himself like that. But he has no idea that injury was intentionally caused by gojo himself to gaslight him into believing he can't be alone.