Merlin and Gwen. SHE BELONGS TO ARTHUR OKAY?!?!
….and according to some people so does Merlin but you know…

Hmmmm….. Merlin and Gwen. Not much to say about it. Their friendship status is just epic.

Hrpmh….. Idk… Morgana and Gwen both annoy me equal amounts and I like them both equal amounts.
Freya. She’s the fucking Lady of the Lake. ‘Nough said.

Oh god what an obnoxious question…
Hmm… Well one of them would be in The Lady of the Lake when, at the end, Merlin is polishing Arthurs boots and Arthur comes in and gives Merlin a noogy to cheer him up. So much bromance. 
Arthur crowing Gwen is another.
And a billion others but I’ll just put those two :]