Anthology of Interest 2 - S4-E3
Fry: All right. It's Saturday night. I have no date, a half-litre bottle of Shesta, and my all rush mix tape. Let's rock.
Bender: What do you mean "we", flesh-tube?
Zapp: It was almost the perfect crime, but you forgot one thing! Rock crushes scissors! But paper covers rock, and scissors cut paper! Kif, we have a connundrum. Search them for paper. And, er, bring me a rock.
Fry: You can't give up hope just because it's hopeless! You gotta hope even more, and cover your ears and go blah blah blah blah blah blah!
Put Your Head on My Shoulder - S2-E10
Fry: I'm not a one-woman man.
Leela: I'm sure you'll be back to zero soon enough.
Zapp Brannigan: Brannigan's law is like Brannigan's love - hard and fast.
Professor Hubert Farnsworth: Oh, I always feared he would run off like this. Why? WHY? WHY didn't I break his legs?
I, Roommate - S1-E3
Bender: Fry, of all the friends I've had... You're the first.
My Problem With Popplers (a.k.a. The Problem With Popplers) - S2-E18
Professor Farnsworth: Hey, unless this is a nude love-in, get off my property.
Hippie Protester: You can't own property, man.
Professor Farnsworth: I can, but that's because I'm not a penniless hippie.
Answer: Yes Leela knew from early on that Fry had feelings for her. They were pretending to be a couple in 'A Flight to Remember' from season 1 and Fry tried to get on dates with Leela ever since. She just didn't show signs of the feelings maybe being mutual before some of the later episodes.
Andreas[DK]