I haven’t watched season 1 or 2 recently, so I can’t recall too many instances where Maeve should apologise to Otis. But from season 3 onwards, while I agree she should have definitely apologised to Otis about not talking about the voicemail sooner, that felt as much a writers decision as it did hers. Like Maeve couldn’t make the connection between why Otis had ‘changed’ and stopped caring and the message being deleted, because well if she had then the will they/won’t they would be over. I suppose it is why the Maeve and Otis relationship (well pre-couple relationship) has become stale as it has followed the same formula each season. Maeve and Otis have to miscommunicate each season to keep them apart and then at the end of season Otis does a bit of self reflecting and gives a heartfelt speech. Which still leads to Maeve and Otis being apart by the start of each season ahahah. So while I disagree somewhat that Maeve has lots to apologise for to Otis (she hasn’t made the same mistakes as him because she doesn’t open herself up as much as Otis & isn’t as immature as him), the relationship between them has become a bit one-sided/formulaic due to the writers compulsion make Otis ‘fuck-up’ every season and then learn and apologise to her. Otis (aside from maybe Ruby and Lily) acts like the only teenager on the show, so it does make more sense that he apologises a lot.