We always say you should vet a woman for 2 years before marriage. Here's the research to back it up:

John Gottman's Research:

The Gottman Institute has conducted extensive research on relationship dynamics, indicating that understanding each other deeply and managing conflicts effectively are critical for marital success. Longer courtship periods can help couples develop these skills before marriage.

Gottman's studies emphasize the importance of emotional regulation and positive interactions, suggesting that time spent building these aspects before marriage can lead to better outcomes.