In short—yes, yes it does.
Being in a relationship means that above all, you and your partner are on a team. It’s you two against the world. In public, you should have their back—defend them when people are ripping on them, having their back when others are trying to tear them down. Behind closed doors—that’s your own, personal business and discussion to have.
When the world is up against your partner, it’s your job to defend her as your teammate, your partner, your co-pilot. You may disagree with them, and later when you’re alone, you may explain to them why they are in the wrong—but to the rest of the world? You’re there to support them.