Madison would be polite to the others but she'd still have this hard barrier round her, which would give a bitchy impression to people, but deep down she just wants people to break her barrier. Though she will turn on people if they touch her when she doesn't want to be touched i.e grab her from behind etc. 

She'd "get" Declan because of the understanding of earning a wage in a not so accepting manner- like Nevermind says. 

She'd also be understanding of everyone's stories and would want to help, as she's known to want to try and help because of helping her father keep food on the table etc when she was at home.