How a narcissist feels about divorce depends on a few different things. If a divorce benefits them, they’re fine with it. They don’t have a moral compass, so it’s not like they hold the institution of marriage as something sacred.
Since narcissists are serial cheaters, they always have multiple sources of supply. If marriage to a particular source would be more beneficial than their current marriage, they’ll jump ship in a heartbeat.
When a divorce isn’t the narcissist’s decision, they go to great lengths to change their spouse’s mind. Suddenly their bad behavior undergoes a transformation. Once again, they become the soulmate they were in the beginning of the relationship.
Once their spouse agrees to stay in the marriage, a more severe devaluation stage begins. Narcissists punish their partners for daring to contemplate a divorce.
A narcissist’s feelings about marriage and divorce are the only ones that matter to them. Marriage is merely another opportunity for them to cause misery and benefit monetarily. It’s never about love.
If a divorce brings a better opportunity, that’s the choice they’ll make. Any pain it causes their spouse is just icing on the cake.