I don’t think deku is a jealous or petty person at all (even though he’s a cancer so the possibility is still there he’s just young), i think he’s genuinely happy that bakugo has a friend like kirishima like that boy is rlly doing community service by teaching bakugo to be a decent person I think everyone is benefitting from that. however I think deku sometimes sees these two interact and gets overcome by a quick wave of bitterness like waaowwwww, is you can be nice and a good friend to others but not me </3. Idk, seeing someone who’s very unkind to you be decent to other people hurts like what did I do to you❗️❗️❗️❗️ this isn’t about deku anymore, I fear, but I think is an interesting universal experience idk the bakugo kirishima deku dynamic could have gone places in my mind palace