It's been a month since I read the novel but as far as I remember Heegyeom is obsess and possessive to Jaehan, it doesn't matter to him what Jaehan did to him. And I remember that he's not actually planning to get revenge. He's obsess. And in the novel, it shows that Jaehan is sometimes scared on how obsess Heegyeom is.
the site is deleted now but I found a summary in twitter
https://twitter.com/catcrowcalls/status/1392178376241074177?s=19











I miss them alreadyyyy