Does this have a novel? What happened? Is it a happy ending???

it has a novel yes, the end is HE but the story has mega bittersweet undertones to it so take that with a grain of salt.

Spoiler pls

there's already a bunch of spoilers in earlier comments if you just scroll a little :)

Yeah ... I saw after commenting... But I want to know what happened with his ex? Did he apologize or get what he deserved?