I kinda like this. Both of their family situations are shitty, with Byoel's closest relative being a seemingly indifferent sister who is at best apathetic towards her existence. MC's father cares more about his research than his family, and MC has issues dealing with people because of it.
It creates an interesting dynamic between the two as you can say they're both indirectly responsible for one another's suffering yet they clearly could connect to one another if one extended an olive branch. Neither is strictly in the wrong, per se, and with the limited information they're working from, there position is justified to some extent, but if they could only connect with one another and grow, then a lot of the hurtles of their relationship could be overcome.
It's a dynamic that's often hinted at in romance but not to this extent which gives this comic much more depth than some alternatives.