why is it my SO is a bigger baby than me? I took something he said out of context and got sensitive,…

why is it my SO is a bigger baby than me? I took something he said out of context and got sensitive, and when I wanted to discuss it bc it hurt my feelings he told me he doesn't want to talk about it and shut me down. then later he closes himself off in the bedroom and says I treated him bad when all I did was call his shit. he ran out of meds and is cranky but I quit smoking cigs 23 days ago and lived to tell the tale. I feel like saying dude grow the f up. be cranky but don't be mean.