Is it more admirable to protect loved ones by confronting danger head-on or by finding a way to diffuse the situation peacefully?

What if my feelings for my husband have gone and I'm just staying for our child because I don't feel like I'm important to him and our marriage and he keeps cheating on me and there's someone I'm ready to accept and my past, what should I do?
How do covert narcissists use their public image to their advantage, and what steps can you take to reveal their true character to others?