So I'm gonna share some opinions about Merlin (BBC TV Show).
1.} While I liked the friendship between Arthur and Gwen, I do not believe for one second that Gwen loved Arthur romantically. I believe she has always only had those feelings for Lancelot. And with Arthur, I always thought Merlin was the right choice for him.
2.} Morgana was in love with Gwen. And I do think Gwen was in love with her until she met Lancelot.
3.} Merlin was in my opinion, one big homosexual love story between Arthur and Merlin.
4.} This opinion is a little controversial, but I think Gaius was in love or had been in love with Uther at one point in his life.
5.} Arthur didn't realize he was in love with Merlin because he confused platonic and romantic love.
6.} Merlin knew he was in love with Arthur, but always suppressed those feelings because he thinks Arthur only liked women.