siblings quarrel

i never tought that siblings could do that
in my family..
quarrels only last three days top
for this one..
i dont know

the story came when a friend of mine has his little brother came in the city
the little brother was a quiet one
while his older brother was quite a rock star
the little brother was going into the college
and decided to stay at the same house
and the fight begins..
the older ones think that the little never learn much of his stay in the city
he cast out the little
its his house anyway..

im thinking..
what would happen if it was me..

i dont think its over now..
cause even tough the older already got advice not to treat his brother that way..
and of course they came back at the same dorm
they still not came back like they used to be
just like what he used to tell me

i..
i dont know what to do..