There is Hope in Confession of Sin and the Desire to be Changed by Christ

We know that covert narcissists attack their targets so that others can't see because they know what they're doing and are fearful others will find out. In other words, they know what they do is wrong but like it because it makes them feel power over others they disdain.

 
If they didn't think anything was wrong with their emotional assaults they would do it in front of others, but they always hide it and deny it if caught.
Proverbs 28:13 states, "Whoever conceals their sins does not prosper, but the one who confesses and renounces them finds mercy".

Sadly the person who uses covert means of attack could not possibly believe God sees what they are doing if they think merely hiding it from people is good enough.
Born-again believers hate being unkind to others. Those who do it regularly and like it could not possibly be born-again.

 
1 John 1:9
"If we confess our sins, He is faithful and just to forgive us our sins and to cleanse us from all unrighteousness."

Psalm 32:5
"Then I acknowledged my sin to You and did not hide my iniquity. I said, “I will confess my transgressions to the LORD,” and You forgave the guilt of my sin. Selah"

There is hope for the wicked person if they will repent, confess their sin to God and desire to be changed by Him, then they can be cleansed of the sin of pride and free from the continual burden of guilt.