Couples fight and argue over different things.
I don't imagine that you can call every couple that argues emotionally abusive. I've read that accusing your spouse of not being honest or bringing up old issues is considered abuse. In and of itself, however, that seems like a pretty normal way for people to work through problems. This concept is based upon the fact that each of us is different - really different. At the beginning of a new, wonderful relationship, we are often astounded by the similarities and deep understanding we share with our new partner.