Had events like these happened before Fuutarou picked Yotsuba, I would have been onboard the Yotsuba train. No matter what Negi does at this point, the whole turn of events come out cheap. He was so fixated on making the identity of the bride a secret by sacrificing important time to develop the character. Not to mention Nino's character romantic development was just dropped by making her super passive about the whole thing. Really makes me think that at some point, Negi drew the line and wanted to start wrapping things up and get to the ending as soon as possible.
Anyway, just sticking around to see how this sad excuse of a writing ends. It's a shame that this series went down like this.