Forum:Question about Crowley and slaves

I gave all three keys to Mr. Crowley and then take Power Armor. After few days he didn´t show up to attak me. When I return to Underworld he is there and attacked me and with him all other residents are hostile to me. Is there any chance that he go away from Underworld? Second question. When I enslaved someone (unique characters, residents with names) I take reward from Grouse, but enslaved people aren´t there in slave pen. Couldn´t I freed them later if I rescued all other slaves?