C20 But you already mark me

“Serena,” he started.

“Answer my question. Can’t or won’t?” I snapped.

“Both,” he sighed. “Serena, we can’t be mates. Marissa just broke off my engagement with her and then you showed up. And then we had sex. We’re not mates.”

“Yes, we are,” I whispered, my eyes dropping.

“You don’t have to say that, Serena.” He stepped towards me, reaching for me. “You don’t owe me anything