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Are you kidding? General yaoi cliche is uke being a pushover and easily forgiving seme for being an A hole. Plus, there's no misunderstanding with ex bf. That guy is just a douche. This is not cliche at all. DG has a backbone and is showing himself to be an emotionally healthy individual. He's not talking Alex back unless Alex works for it. This is RARE in manhwa/manga land.
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You've read about emotionally healthy individuals "in most yaoi"?!?! LOL, I don't know what you are an otaku in but it is not BL. Couples may get back together but not in the way Emerald Princess described--that is where this title avoids cliche.
Nothing wrong with wanting a title to be even more different. I myself would have loved it if DG ended up with a different dude entirely. But we're at chapter 48 here. This is like watching My Hero Academia in season 3 and complaining that the teachers refusal to expel Deku and his rule breaking friends is a "cliche". It's shounen: there's nothing in the writing that suggested we would not be following Deku and friends in their ups and downs at the Academy. BJ Alex is BL: there's nothing in the writing (so far) to suggest that anyone but Alex and DG would be the main couple.
And just as foretold... we are back to general yaoi cliché. All is right with the world.
A couple of chapters where Alex regrets. He will also meet old boyfriend who will explain that the whole thing was a misunderstanding and he only pretended to cheat cause Big Brother found out, allowing Alex to overcome trauma.
Meanwhile, DG will meet a gorgeous more-deserving hunk that will make Alex seethe with jealousy. Followed by an altercation between the three where Alex will confess his newfound love. DG will dump the obviously better guy and they will get back together.
** Also possible, but less probable...DG meets worst dude and is saved by Alex, ... then they get back together.**