Why was Sal disapproving of Dean?
After Dean had sex with Steve Buscemi, we see Dean trying to justify himself in front of Sal at the diner, saying he did it for them, to make 20 bucks and then storming off when Sal doesn't respond.
I didn't understand why Sal was cross with Dean at that moment. I don't think it was because Dean had extramarital sex because Sal was okay with Dean having an extramarital affair with Marylou. I also don't think it was because Dean had sex with a man because Sal was well aware of Dean's bisexuality and was accepting of Dean and Carlo's relationship.
The only reason I can think of is that Sal was cross with Dean because he was still trying and willing to earn easy money (to later spend on drugs and life's pleasures) instead of focusing on his family and working hard for a living. But I'm not sure if that's the actual reason.
So what are your thoughts on why Sal was disapproving of Dean? Did I miss something?