
Well Nara was the first person he ever trusted and opened up to. Nara was the first person who made him want to live, he was the reason he began eating, before that he could reach the food. They had him chained and the food was outside.. Then that very same person he opened his heart to began poisoning him, that betrayal was brutal.
Nara wasn’t the only one who poisoned Tasara, just the only one Tasara didn’t kill. If it wasn’t for Nara, that poison would have never reach his body. (Since he wouldn’t have eaten) He expected that behavior from everyone but Nara.
Even if Nara felt bad afterwards the shock created an alter ego for Tasara. His other side which helped him survive while he was away at war, the drive that kept him going was the idea of getting revenge on Nara. The one who gave him hope then broke his heart. He felt connected to Nara meeting again but couldn’t explain it. Highly complicated relationship.
does he know that nara took poison in his stead