If you’re holding a grudge (even a little one) against any of your friends, it’s going to be hard to feel good about the relationship. Whether someone spilt red wine on your favorite (new) dress when they borrowed it, or someone skipped your birthday in favor of a hot date, it’s time to forgive and forget. If there’s something really bothering you, now is also the time to talk about it. The more you hold back your real feelings, the weaker the friendship gets.