I dunno, man. If I'm following this, it seems that for once a tsundere is actually discovering that sensing mixed messages - *gasp!* - can result in people not getting the message you want. Not sure he's really the dumbass here.
Somehow it feels that few lines are a bit off. I tried fiddling with it and making the misunderstanding between them more readable. I'll leave check_translation tag for someone to proofread me.
So, Kaga, if someone thought that you're friendly with me...Why?!...you wouldn't like it.Huh?Did I do something to you??And then everyone around me made fun of me...!!Well, yes I wouldn't.That's because you wouldn't like it, right!?When we entered middle school, you ended up ignoring me.If someone thought that you're strangely friendly with me...