Responses
im quite sure it will be this one
https://www.mangago.zone/read-manga/silent_color/
OMG I THINK IT IS THANK YOUUU
I CANT FIND THE NAME TO THIS BL where 2 kids were in the psych one is this rich dude and his parents sent him there for being gay and the other this quiet kid with pink(or coloured) hair and the person running the psych ward tells the gay kid to befriend the quiet one
And it ends with a time skip where they both meet again at a beach
Also I read it on this app full of yaoi and bl on my iPhone but the app was deleted for copyright