Submitting to My Lycan Prince Mate

At a party, everyone sees Claire's joke.
His fiance, chosen mate, walks past her with the ring and gets down on one knee in front of her stepsister.
What the hell is going on here?
"Joe and I are together now. Because we are each other's fated mates." Her stepsister said triumphantly.
"We know you're hurting, but Cathy is your sister. You should bless them. Your sister will be the next luna, not you." Said her father coldly.
In an instant, she changed from a happy girl to a poor person who had been abandoned and betrayed.
"How dare you do this to me?"
Desperate, she looked up and saw Prince Louis, who was also at the party.
Although appealing directly to a member of the royal family would have been punishable, Claire had no choice.
"Your Highness, I beg you to do justice and disinherit them. I claim my right."
The crowd held their breath as they watched the murderous prince rumored to have killed his brother.
He approached me with a dark look.
I closed my eyes and waited for my punishment. But I felt big hands around my waist. He buried his head in my neck, took a deep breath, and said in a deep voice.
"You are a very smart and brave girl. I can help you, but I want something else in return."
I ran into a hug, his scent all around me. I didn't know, until this moment, that I was in even bigger trouble.