You married the king because you were forced, at first you didn't love him but over time you fell in love with him and started to accept him.

One day the king's first wife came and was angry with you, she insulted you because you spent more time with the king. He was jealous because the king did not give him attention.

Yelena: "you're a whore, a slut, a harlot. know your place you're only his second wife, I'm his first" she slapped you and grabbing your hair

King Arthur : "stop it yelena!!"