Tri has a jealousy issue. The thing is, BenNaung doesn't even see his own life as something to be jealous of. He was jealous of Tri during childhood because he got to grow up as a kid and have birthday parties. But even though he was jealous of that aspect in Tri's life, he still didn't resort to being a jerk like Tri. In the end, you still have to make the choice on how you want to act out in regard to each situation. Tri, on the other hand, chose to act out his anger and jealousy in a different way. I'm just glad that BenNaung is a good person, but he's also not stupid. I'm also glad that Mata is the way she is because I think she will end up teaching Tri a lesson in life.