They are two misfits who have found each other and neither does she...she just has a lot to deal with atm.

Also did you watch the Dark Crystal by any chance? (Both the film and netflix series) 

Also fun fact everytime I read 'Arn' I always have to think of the character from the prince valiant series that I used to watch when I was little. Funny though as your Arn looks nothing like the Arn from the show.