Meh, it was like really really obvious who Toono was going to end up with from the beginning. He was always closer with Kashima. He never showed genuine romantic interest towards Yacchan, at most he thought that he was cute before or got flustered when Yacchan made advances towards him. I get where you come from with regards to LTs bc I've read such plots as well, but Yacchan was not THAT developed. He's not that much better than the others either.

They always write one side of the love triangle really well, as a slow burn and with a developed ml. But that side never wins. It’s always the same bland over done ml that wins. Oh well. Dang like 10 years of following ts for we tf that was.