Uhhh... Hmmmm. I think the manga "Kimi no Okaasan wo Boku ni Kudasai!" did this concept better?
This kid kinda oozes scummy, even though he says he likes the FMC he's really just interested in her body.
And the fact that he was gonna drop out of school kinda says he doesn't like working hard at all.
Well he is a "teenager, but if he wants to marry her, he better mature a bit more before he pursues.