• Accept a stalemate
• Allow for differing opinions
• Avoid upsetting detente
• Call a truce but remain at odds
• Continue cordially despite differences
• Differ amicably
• Leave a dispute unsettled
• Leave an argument unresolved, say
• Leave things unresolved, perhaps
• Not completely settle an argument [New York]
• One way to end an argument
• Realize there will be no resolution
• Simply stop arguing