One book that had a large influence on me was "How to Argue & Win Every Time: At Home, At Work, In Court, Everywhere, Everyday" by Gerry Spence. The portion of the book which spoke to me the most about arguing in relationships.

The author poses the idea of intentionally losing when arguing with a loved one since the victory will usually be a hollow one. It might seem like simple advice, but I found it extremely influential in my life.

There are many times when being right is actually the worst thing to be and made me consider if winning an argument was worth (potentially) damaging a long term relationship. When it was, this book gave some good advice about quickly repairing the damage and minimizing the consequences.