The smile on Seraphina's face did not even dull for a moment when she shook hands with Marcus and said, "It's a pleasure to meet you, Mr. Grayson. Elijah has told me a lot about you." she placed her hand gently over Elijah's chest making sure that Mia was looking their way.
This was her way of not so subtly informing Mia that Elijah was hers. Hers to be used as a pawn, hers to punish and for that Mia needed to stay away from his as far as possible.
Elijah, on the other hand, was completely smitten over this show of affection. He could not describe it in words about how good even the slightest of her touch feels, so he settled on smiling and staring at Seraphina.
His reaction did not go unnoticed by Marcus and Katherine, who shared meaningful smiles before Marcus asked, "I hope all of those were good things." he chuckled and sat down while Elijah pulled out a chair for Seraphina.