1. /
2. /
3. /
4. Hubert, Yes I know, he threw his girlfriend away, wich is total bullsh*t, but I'd still say he behaved the best, because it's a normal reaction and most people would react like that.
5. Mary, because she went full prostitute.
John, because he stole someones Girlfriend and hurt a guy.
Mother, because she didn't help her beloved daughter, even though she was asked to.
Simbad, because he's generally a perverted asshole (many can agree).
I think everyone should feel guilty. Every single one of them did something bad, but I chose Hubert to be #4 because his reaction is the most understandable.