possible spoilers??? idk
naw why is everyone feeling bad for the ex????? he was bored of their relationship and clearly didn't show the mc he cared, then he regretted everything after they broke up. he didn't actually "do anything" but that's the whole point: do you realize how heartbreaking it is to see your partner getting bored of you and distancing more every day? been there and it feels like shit so yes, he got what he deserved and I hope he suffers a bit more