You need to kill her father to romance eerie and you can make peace with both factions by doing all of their missions the dillan part of both missions dont matter if you favor the faction you like more the other faction will just reduce the amount of powder you get then after getting both missle missions go to red lights and meet the owner (i forgot her name) which was rusty's daughter and langs ex girlfriend you need 10 charisma to convince her to make peace with the factions