Why do we often quarrel ??

I really don't know, I think we see different things, we observe different things, we consider different things !! I'd like to understand that what you see but we can't !!
I was very quiet but you succeeded to find in finding a the problem where there wasn't one. isn't !! Why ????

Why do we often quarrel??

I really don't know, I think we see different things, we observe different things, we consider different things!! I'd like to understand that what you see but we I can't!!
I was have been very quiet (so far), but you succeed to find the a problem where when there isn't one!! Why????