Lol heero, maybe they don't want to hide it from you in the first place but they prefer not to tell you coz they wanted you to keep on running after them, just like FA's of qatarairways, they are trained to be nice to people so when somebody courts them, some guys misinterprete there kindness thinking that she also feels the same way towards him but in fact, she was just treating him like one of her passengers on board.