Support Each Other
You explain to people that—standing up for them—proving that he/she is a better person than their actions or words at that given moment are proving. We all have our faults, and we all make mistakes. The worst thing you can do for your partner is abandoning them when they probably need you the most.
In your relationship overall, you should want your partner to be viewed in a positive light. So, when the world, your friends, family, or co-workers may be up against them—the best thing you can do for your relationship is to defend their character, their morals, and who they are as a person—even if their actions at that given time are wrong. At the end of the day, it’s just you two against the world; don’t let them fight alone.