this was awesome. it started out with me laughing and then by the end it was just like "oooh my heart ouch". Poor, poor Morgana. I loved the way you captured her love of Arthur vs her jealousy of him, and i also love how you never had them being violent or hostile to each other because that's the one part of the legend i have trouble wrapping my head around- Morgana really loves Arthur, and I can't see her intentionally hurting him.
on a side note, THERE WAS NO MORGCEST T_T
but it's okay since you wrote Morgana so perfectly. oooh, my heart ouch.