I get you don't want him to leave.. Trust me I've been there before and it was worse because I actually went trough it with SUJU and TVXQ, it wasn't just speculation. But this whole bs people are writng on his IG of "oppa please don't leave us. Think about our feelings" is just pathetic. 

Your feelings? Think about his. This isn't about YOU, it's about him. Stop being so ing selfish. He's the one who has to work like a dog, not you. He's the one who's truly unhappy, not you. Support him or not, but it's his decision, so stop begging and guilt tripping him. It isn't going to do anyone any good. Especially since nothing has happened yet. 

We don't know if they actually will come to a compromise. Plus it'll take time. It won't all happen over night. And for him to decide such a thing means he made sure to consider it for a long time. And who's to say s didn't help him come to that decision. Just let the guy be.