A few months pass.
Sasha studies with Kaleva, gets Kaleva to explain the math so it makes sense and explain the science so he can see how it clicks and reads about parts of history he's interested in. (Reads up on what England is like.) His grades improve; he gets more of his homework done when Kaleva is there helping him.
They go to the bathhouse and Sasha gets hit and gets tied up and suspended from the ceiling and gets fucked where Kaleva can see, and afterwards Sasha goes to Kaleva and puts his head on Kaleva's shoulder and says "let's go home," and falls asleep on Kaleva's shoulder at night.
They go to all the museums and libraries in New Orleans. Sasha does a slightly ridiculous amount of reading about art and art history, gets more and more confidently opinionated the more he sees. He picks out Kaleva's clothes for him, which ends up with Kaleva wearing more color than is typical for Auradonian men but maybe Auradonian men are just wrong.
He keeps quiet through conversations with Charlotte, ignores everyone she knows who's his age in favor of Kaleva or a book, does his best to get through Remedial Goodness class without anyone seeing Kaleva on his end of the Skype call, learns to climb trees. (He still misses his old gang. But.)
If this is what Auradon is like when you have people, he's a fan.