Why do some people love to overreact so much? “Jimin took JK hand off his shoulder, they must be fighting”, “ JM is in a bad mood”, “JM rejected JK”.
Jimin is just more cautious about showing their closeness on public, and he probably thinks of “ hand on the shoulder” as of most obvious form of close skinship, so he gives JK signs to behave.
In today’s interview they were both smiling after JM took JK’s hand off, you can actually see, that there’s nothing bad going on between them, and JM is not angry.
Also he often likes to tease JK a bit, and JK likes being teased. You can see examples in some “21st century girls” performances, where JM jokingly “rejects” JK. They are both smiling and looking happy after that.
Of course, there might be real fights between them, it’s normal, they are just people. But there’s no need to cry that they “fighting” and “JM doesn’t love JK anymore”, when it’s obviously not like that.