my brother has been picking weird fights with me—there would be something that i've said that apparently upset him, he doesn't say anything about it in person, and then writes me an email criticizing me in a way that doesn't fully makes sense to me.

these email exchanges went like this:

&gt;**him**: If you could take this into account, don't tell others(me) what to do. If you want examples then what i said yesterday to mom that there isn't the spiderman movie. you said: let me check. today with sushi you said, do this or that. you yourself said that you dislike when others try to control you. so try to be understanding of other people. good luck in exams (answer not necessary)

*(for context, with the movie he was trying to find the movie our mom asked to find netflix, said that it's not there, and then i said something like 'give me, i'll check' and tried to find it myself. with sushi our mom brought home some, and i've been trying to find my box when he came, so when he and mom were trying to find which boxes were for which people, i said which were which. i later asked my mom if i was rude or controlling somehow, and she said no, that she didn't know which sushi looked like what and it was helpful to her.)*

&gt;**me**: what did i say about sushi? and with the movie do you mean that i was telling you what to do because i told you to give the remote?  
&gt;  
&gt;**him**: I don't want to interrupt your studying. It just annoyed me and that's that, about the remote i wasn't even talking with you, and you said give me i'll check, a weird situation  
&gt;  
&gt;**me**: if you don't want to interrupt and won't say why, then i can't really take this into account because i don't have enough information to understand what you didn't like  
&gt;  
&gt;**him**: I think it's enough information, and i don't want to think about it :)

today there was another similar interaction about a different situation. i just responded that if he wants to talk about it we can talk in person, and if this was to vent then i don't have much to say to that. he responded that he doesn't want to talk to me.

he's been on meds for a few years.