Just something I have thinking about. There are probably lots of better examples but here are some that stuck with me.
Ways Fraser said I love you to Ray Vecchio in canon without saying the words:
1) Yeah, well that’s probaby why you and I have been such close-- (RWOB)
2) Oh, that’s very clever, Ray. (RWOB)
3) No, Ray. I know you. You were attempting to protect this institution-- (Vault)
4) Ray, Ray, Ray. (take your pick)
5) You know, I think there are certain things you'd live to regret in your life. Losing your friendship would be one of them, and losing her...(VS)
6) You should take the deal. You should take it anyway. (VS)
7) I have two axes. Two. (LG)
Ways Ray Vecchio said I love you to Fraser in canon without saying the words:
1) Hey Benny. Not in your lifetime. (VS)
2) No, you’re a hero. (Flashback)
3) Oh, Benny, I could kiss you! (Flashback)
4) Benny. (take your pick)
5) Hold on, Benny! (ITR)
6) Are you human? Because if you are, human beings feel things, okay? They feel anger, they feel love, they feel lust and fear. (RWOB)
7) I mean, it’s just one of those special cases where alone we’re incomplete, but together we’re better than we are separately. You know what I mean? (Flashback)