Tony has been a horible person Since day 1. I don't think anyone hated tony for killing ralph for assuming he killed Pie-O-My, but now that he killed chrissy everyone is turning agaist him. He had a better reason for killing chrissy then Ralph with the constant using he is a big strian on tonys mind.

Travis Bickle: Loneliness has followed me my whole life, everywhere. In bars, in cars, sidewalks, stores, everywhere. There's no escape. I'm God's lonely man. -Taxi Driver