
man i knew they both were weird people, but the uke is gonna go back anyway, that is how dumb he is...

He's not dumb dude. In that era with no money or help. How will he even survive?
Moreover we don't know the proper past between him and the teacher, we can see now that he's a proper manipulator. Who knows for how long he has taken advantage of the Uke. It's easy for us to see because we are removed from the situation but for someone who has been manipulated and or gaslighted from the start won't find it easy to break away.
"u think i will fall in love with u if u do this?"
....
u fell for him long before this, its called love at the first sight, idiot.