Do we ever completely heal?

Do we ever completely mend from the abuse of these twisted men? I mean when a "Normal" relationship ends and there is sadness, but you mend even if there is no new significant other in the picture.
But this hole in my heart is so deep from the pain he caused and the shift of blame on me.
The hardest thing to except is that he is disordered and never loved me. If we look at someone in a wheelchair who is mentally retarded and not capable of speaking, walkiing, feeding themselves, etc... we get it. It is permanent. Yet with this evil men, they come packaged as handsome, extremely intelligent and fly below the radar. It is so hard to accept. It reminds me of the movie "Invasion of the Body Snatcher". They look like real people with a heart, but you get close enough only to discover they are alien.