Someone once asked...
Someone answered with kindness...
It is hard to say based on your question alone. Love and life are multifaceted. It could be that constant quarreling signals a lack of concern and feelings of contempt, or it could be that the fighting stems from a deep seated desire from each party to hammer out issues in a relationship that both are very committed to and both cherish deeply. Only you and the other are equipped to know which of those states is true, and thus, how to proceed.