Your own safety valve

Keeping a hurtful truth from your partner may easily backfire the next time you get into an argument. While you may keep a secret for weeks or months because you do not wish to hurt your partner with it, if you get into an angry argument over something this information may spring up as perfect ammunition. You may, without thinking, fire it at your partner as a way to wound him or her.

If instead you choose a good, quiet time to constructively talk about the situation with your partner, then you have ´defused a potential bomb.´ Your partner now knows and understands the situation, and it won´t be lurking in your mind if you get into an emotional argument in the future.