My boys will be 5 & 9 in December, and are constantly pushing each other's buttons. I'm growing tired of being referee, and often side with the smallest (I'm the youngest of 2 and remember how very annoying a big brother can be!), which I think is impacting my relationship with the biggest as he feels I am biassed. I do feel as if the 4 y/o needs to stand up for himself a little more rather than coming for me everytime his big brother upsets him. Sometimes I overhear their argument and can't help but get involved though!
How do you decide when to step in and when to just leave them to it? I do often just separate them and send them to their rooms to cool off, but once they're released it doesn't take long to start off again.