SVT's Mingyu and Jeonghan don't actually get along!
Well that is wrong to say, they aren't fighting constantly, but they aren't friends either. The openly admit that their personalities do not fit together at all. Those 2 can't even share a room, because they will end up arguing about if the curtains should be open or closed etc. The little habits the other has annoy them.
They know that they aren't compatible so they do their best to not put themselves in a situation where they would fight. They don't share rooms in Hotels, they try not to get stuck hanging out with only the 2 of them there etc...
They aren't friends, but they know how to work together.