It could've been better

I think I get it. Eichis's (seme) grandmother told him to not become an animal, so maybe she meant that he was straight (?) and that's why he was a coward and didn't confess to Souta (uke). Maybe Souta knew or take a hint and didn't want to get Eichi "dirty". I hated that Souta let others take advantage of him or that's what it looked like, but if he really liked sex, it's ok, he shouldn't make a fuss over it. That's what I wanted to think since the story telling is a mess and could have been deeper. Don't read, they just like each other but they're fools.