rubbing my hands like a fly
look. I GENUINELY BELIEVE Amity would forgive her, and she kinda does in the FTF episode.
Amity is a very selfless and caring character who even tried to appeal to her mom's good side when the whole day of unity thing happened, and Odalia has been the only character she completely cut ties with. Amity knows Boscha is a highly troubled child with anger issues and probably the same obsession with winning, being the best and keep everything in control as she used to be before Luz, so she get her, not justify her, but she knows Boscha needs time and real connections in her life.
Amity is a character that always gives a second chance and won't judge you at first glance if she sees good in you (Alador, Hunter, Lilith, Luz, even the Collector), so having a beef with Boscha would be very OOC of her. I think Amity would encourage Boscha to be a better person and care for those who always stood by their side, but I don't see Ams hanging out with her or the grudgby team anymore. Maybe they chat sometimes to each other about unserious things, and every once in a while Boscha still tries to surprise her with her progress or invites her to play some friendly match with them, and Amity would agree for pure courtesy and the sake of sportsmanship and fun. I don't see Boscha apologizing but being less of a jerk with everyone, her kindness is only directed to herself and her teammates only, and Amity is a constant reminder she can be a better leader everyday.
Also, I believe Amity is the one who invites her to Luz's quinceañera party, and she would show up because, I mean, the human saved her team, is the least she can do, to show some grattitude (giggles).