Most people who have been in long-term relationships agree on one thing: the beginning is the best.

That’s because the start of a new relationship is the honeymoon phase, the period in which you’re absolutely intoxicated by the other person. But in many cases, the honeymoon ends and the spark burns out after a few weeks. As a result, new relationships don’t always survive.

Relationship expert Talia Goldstein, CEO of white glove matchmaking service Three Day Rule, told INSIDER that there are three key signs that a new relationship will actually last.

Here’s how you can tell if your fling will go the distance.