I feel like some of you guys are forgetting the plot. Yes sasyas behavior is weird and erratic and no he can’t expect for Karel to be in love with him after all this time of not speaking but see sasyas perspective. He was assaulted by his previous household and had to run away then his whole family was executed the same day he first met Karel. Karel becoming so obsessed with sasya so soon was sure to confuse him. Especially when the wife of the man who assaulted him came to visit.
Everyone is saying sasya seduced Karel then gave him the cold shoulder when he obviously only did it because he thought that’s what he needed so Karel didn’t lose interest. Don’t forget they couldn’t speak the same language.
Sasya going along with Karel to the countryside is because he knows he has no where else to go.
We don’t know why/ when/ how/ Sasya left the house or why he killed that man. After Karel left we don’t know what Julian told him or how he reached high society. All Sasya ever wanted to do was be apart of the ballet and now that no one has been kind to him and it’s the same as when he lived with the Duke of course he’d feel hopeless and cling to the only person who has been kind.
No this doesn’t excuse his actions but just a little more insight/// sorry for the essay