If you believe money causes tension in your relationship, you’re not alone.

I’ve spent the past two years interviewing and studying more than 60 couples and the ways they come into these conflicts. I’ve learned that love has little to do with it. You can love each other deeply and still allow money to erode your relationship if you’re talking about the wrong issues, or not talking about them at all.

People often focus on the problems right in front of them: missing a bill payment or spending over the monthly budget. But these smaller transgressions can be a symptom of a bigger issue you and your partner haven’t identified yet.

The happiest couples don’t let these money mistakes ruin their relationship:

Long ago, you and your partner may have decided to do something one way, and you’ve been doing it that way ever since.