Responses
I totally get where you're coming from but in Haru's case he mentioned his gay friend were also online friends meaning he's never had physical interaction with someone who is gay and personally the feelings I got from Haru is he has a bit of a complex concerning the fact everyone seems to prefer Aki more than him as well as not being sure about his own sexuality and is willing to explore it to find out. So while it could have definitely been better portrayed in this case I don't think Haru is making that big of a leap here.
okay bear with me now cause I'm about to rant and I'm sleepy af, but isn't it really strange in yaoi how a lot of guys go from "yeah I don't care I got gay friends it doesn't bother me" to "okay now I wanna fuck a dude". That's miles apart like how do the authors think the line is so thin between these? being cool with gays because you have gay friends isn't even the same as understanding and respecting people with other sexualities. so how can you wanna bone a guy the next minute? I get that little bro here might just be teasing but like I sense at least a hint of serious invitation in that, and it just makes me so confused at the ideas in these mangakas' heads.