Alpha Calvin

Marcus looks at me before settling his gaze on Liam, he seems to be considering his words before speaking.

"Beta Liam, your mate Sarah isn't actually your mate, not your true mate, she is my second chance mate!" What the fuck is he talking about? I can see anger spread through Liam at him saying that Sarah is his mate and not Liam's but I don't see him get any kind of urge to kill him which is how it would normally work and I'm pretty sure Marcus has noticed ...