The Fall of the House of Usher: What is Julius' reaction to Leo's death?

In response to the question of Julius' reaction to Leo's death, it can be inferred from the summary of "The Black Cat" that Julius is shocked and scared when he sees Leo's broken body on the pavement. The death of Leo, his beloved ex-boyfriend, is untimely and bizarre. Throughout the episode, Leo's descent into madness is evident as he becomes paranoid and believes that the replacement cat, Pluto, is living inside the walls. Julius, however, attributes Leo's behavior to drugs. When Leo tries to get Verna, the shelter worker, to take the cat away, he is unsuccessful. The episode culminates with Leo seeing the cat on his balcony and falling to his death while attempting to catch her. Julius, witnessing this tragic event, is left in shock and fear. The twist comes when the real Pluto walks over to Leo, meowing softly, revealing that the fake Pluto had been causing havoc in the house. The camera then reveals an empty bathtub, where Leo had collected the fake Pluto's offerings. This suggests that Leo was killed by his own mind, and Julius realizes that he should have convinced Leo to cut back on drugs. The summary does not provide specific details about Julius' immediate reaction or his emotions, but it can be assumed that he is devastated by Leo's death, as they are described as having a close relationship.