How we cite our quotes: All quotations are from West Side Story.
Quote #1
RIFF: When you're a Jet,
Let them do what they can,
You got brothers around,
You're a family man!
You're never alone,
You're never disconnected!
You're home with your own--
When company's expected,
You're well protected!
The Jets define themselves by loyalty. It's more than just sticking up for each other. Loyalty makes them strong, and gives them a level of power and control over their lives that they couldn't hope for otherwise.
Quote #2
RIFF: Now I know Tony like I know me, and I guarantee you can count him in
Riff's counting on Tony, even though he hasn't asked Tony whether he'll back the Jets' in the rumble or not. Even though he's out of the gang, Riff knows you're a Jet "till your last dying day." It's not like Tony's going to fall in love with the sister of the head Shark or anything, right?
Quote #3
RIFF: Four-and-a-half years I live with a buddy and his family. I think I'm digging a guy's character. Boy, I'm a victim of disappointment in you.
TONY: End your suffering, little man. Why don't you just pack up your gear and move out?
Here's some insight into why Riff and Tony are so close: Riff's lived with Tony's family for four and a half years That suggests that Riff doesn't have any home life of his own to speak of, which makes Tony his brother in every way that counts.