true,, i feel the same way too,,
In a way, it's sad that that the uke had to go through hard times facing the cruel side of school and society,
And had to experience bullying, including from the seme,
And that he can't help falling for the bully seme, which, according to my analysis, because the seme was probably the only one to ever got so close with him to the point that he knew all his secret and therefore he would naturally just be himself in front of the seme, and eventually drawn to him, and at one point was heartbroken by the seme's words,
But since the uke himself was happy in the end, it was all good :)
And even if they're both happy at the end and even if it's manga, for me, it's "too fluffy fluffy yaaay *o*". This time I read a lot of tragedy, maybe it's because of this..?
BUT, and it won't change, I think than the end for the uke is not "realistic" if you see the rest of his life.
Sorry for my english level 8 years old but, as you can see, I'm freeeench :O
For me, it was pretty sad.