Sort of. Basically, he is a very lovely person but he is insecure and he gets more and more uncertain when he finds out just how upperclass she really is (because he's from this farming bumpkin type family) and her mother hates him and he gets jealous too and you can see he's thinking she will dump him (because I don't think he truly can believe she loves him and wants him) and frustration over various things (most of them not directly involving her) mounts and he basically breaks up with her as a defensive measure. So it starts out not being about his vision but if it wasn't for that, it's pretty clear it was a couple fight type thing and they'd get back together double-quick. But once he finds out about his eyes, basically there is no way he'll take her back (and the poor guy is having a total meltdown in general) and I feel horrible for him but also for her - it's a huge growth sign for her though because earlier he commented her big flaw is that she is 'easy' (not in a sexual way, in an emotional one - nothing matters much, she moves easily on) but she just won't let him go despite him pushing and pushing her away. There is this one scene where she is just banging on his door and refusing to leave and he's sort of sobbing silently inside which is so...makes my heart hurt. She even gets sick from it all.

OK, I should stop babbling.

I love when he goes back to her not because his prognosis has improved (it hasn't) but because he simply cannot hold himself back anymore.

OK, I need a rewatch NOW.