In my opinion...
No, abusers usually do not "end up alone".
They have the ability to pick up on the radar from a victim's mentality.
Zoom in and begin a relationship with them.
Over and over, new people, if need be.
Abusers IMO always have someone.
That being said... I also have to say... our OP who's now gone under that pseudonym and is surely hidden elsewhere...
...because I know her history after following her posts for a loooooooooong time... not only likes to play "victim" but is actually an abuser herself and has gotten extremely distressed when confronted with that especially by multiple people.
There's threads where she admits being a passive aggressive partner.. moves from relationship to relationship whilst playing "victim" to her history... and has shown traits and even admitted not being able to distinguish between normal conflict within relationships and her ability to be able to deduce the difference without pointing the finger at the "offending" party for her behavior.
"Blame".. the concept ...is a HIGH indicator of abusers.
She's opposite scenario of the abuse she received IMO but still reflective.
And worst case scenario... either doesnt want to... or has refused to ... believe that.
Because its a mental illness...whether by genetics or nurture... abusers seek what they need.
An audience... or at the very least.... a participant... to be able to live and enjoy or blame ... their mentality.
Do abusers end up alone?
They dont know any different... its what they're used to...
Alone? How can they live without it? Its what drives them...fuels them... their purpose.
That interaction. Narcissitic.
They wouldnt exist otherwise... they'd have to kill themselves which is what alot of them do... when they finally have to pay the consequences.
A paedolphile doesnt stop. A serial killer doesnt stop. They seek their victims.
What makes you think that any abuser/person with that primitive mentality... doesnt?