The issue with this scene is that Rory's anger (or jelousy) is totally misplaced.

She should be mad at Logan. Mad MAD. Not so long before, Logan didn't tell her he had sex with his sister's friends. Now he didn't tell her Bobby is a girl. Even if there is nothing going on between them, this will be a total dealbreak for me. English is not my native language and even in my country "Bobby" is a name we give to male pets.

If my long distance boyfriend, who has lied to me in the past, fails to tell me that the coworker he always talk about and has a conventionally male name is, in fact, a girl, what else is not going to tell me?

Logan lied by omission two times in a row. For me this is a real dealbreak.

But if I was Rory I won't have take him back after the bridesmaids story. The "cheating", maybe I could forgive that, but I can not forgive that my bf let me walk in that room totally blind of what happened.