Responses
Unless it's a yandere. But he doesn't really feel like that. His obsession with his past lover caused him to lose a potential future lover. Life lessons taught here.
Yep the big lesson is : don't get trapped in the past and forget to live the present
boi really said LOVE LMFAO last time I checked you DON'T >>KILL<< those you love yep. He's just regretting that it didn't go the way he wanted it to, if kaveri had comeback just like he was b4 dying khaol would be all lovey-dovey with him now and wouldn't even remember river ever existed, river was just a means to an end for him.