Look, everyone gets to voice their opinion but you're plain wrong about everything but the fact that you yourself might hate MC in this chapter.
What a reach. This was a high school play that he was a backstage scrub for and he made sure everything was done and ready. Not like anyone made him feel overly welcome these chapters (stress as we saw)
He clearly would be there for the birth of his child. Jesus. What a weird choice to try and make a point.
Yes, him being somewhat of a pushover and "toxic helpfulness" are actual plot points with depth and I enjoy them being worked on but he went and helped two people lost at their school festival. He himself only realized later (and gained the confidence to acknowledge) that she might want+need him there and that he wants to be her reason for a smile.
Oh, how I hate character development and growth!
Also, the girl he likes is playing princess with the hottest playboy. No matter what you say, MC not seeing 99% of the play most probably is the best for all of them. All the lines, the dance etc. they worked on, with another guy, the kids and parents seeing those two and not him. Shit surely stings when you're an adolescent, no matter the vibes.
I think he took it like a champ all things considered.
And your point about wingman actually being sick? Well, lucky you, there is his toxic helpfulness! This is where one could say "why didn't the wingman just forfeit the role?". Would've been the best of all worlds.
I also like that the ML did the exact sorts of things that she likes him for. Helping others, especially children, is so green flag-coded and absolutely the sort of thing that would make her swoon just a bit more.
And he
did get there in the end right when it counted, as you said. Right when she needed to smile, he was there, and gave her the reason she needed, and the support and encouragement.
And honestly - given their story mirrors the story the play's about? The Prince in that story wasn't some big flashy dude who went around being showy with his affections. And in that same spirit, the ML
not suddenly stepping in as the co-lead, matches that energy and type perfectly. He was there in the back, only she saw him, and he was there for her, while also not "stealing the spotlight" or being at her side potentially mucking up the play when the rest of the cast wouldn't be prepared for such a sudden change up.
Ultimately he got there when it counted, he helped others and stayed true to himself, and she still got to see him see her at her Big Moment. It really felt like a win all the way around, and it managed to avoid a pretty big cliche in having the ML "suddenly have to step in" and help at the last second, while still fully succeeding at moving the plot and characters and relationship forward.