For an empath, this relationship will be everything as they are the ones who are in love. Out of love, they would always want to soothe and cheer the narcissist, talk to them, help them and do whatever it makes them feel good. The narcissists project themselves as the victim of their past, their relationships, and the circumstances. The empaths are givers; they try to make up for all the unfortunate things that have ever happened to the narcissist.
The empath has a good and a clear heart and cannot imagine the deep and unresolved wounds of the narcissist are not the same as their own. Healing those wounds is different from their own.