just like i have an obligation to you , you are just as much family to me boy and if you do not see it after all these years , well then you are just blind.just like you say those girls need a father , they need a big brother too.thats what you are to them , dont ever think differently , you could never live with yourself if something happened to me , so how do you exact me to live with myself if i returned to the bunker , having turned my back on their big brother , we in this together boy , like it or not .