I was pointing out how his character did not just "end" at the beginning. It carried on to the very end of the game.
And I think we're approaching this from very different angles. You're looking at it as a simple story as opposed to a role-playing game. And not in a Final Fantasy way but actual self-insert roleplaying. In the real world nobody gives a trout that your life is hard and you got problems. You meet someone who is a jerk to you and you flip them off. You don't ponder that daddy didn't love them enough or maybe their dog got run over. Maybe both those things are true but it doesn't occur to you because all that matters is this person was a jerk to you.
Yukari and Junpei are not just characters in a story to apathetically evaluate. They are your friends. And if they do nothing to earn your friendship, if they instead constantly do things that make you mad, you're not going to love them anyway because character development.
I love Mitsuru. Best character inf all of P3. Yukari's passive aggressive assaults on her all through the game are not going to be forgiven 40 hours in because she has a great moral epiphany and gets a message from her dad. That's not how you think about people.