Connor had seen Elizabeth drink blood plenty of times by now, so he wasn't as fazed as Marl was. Marl went muttering on about not natural. but he didn't do anything else about it, returning to the computer. 

Connor sighed, and went to sit down, stifling a yawn. He wished he knew what he could say to Elizabeth to make this all better, to fix it all, but he couldn't. So he fell silent, looking down to the floor/ If Marl wasn't here, he might have done something. 

He ran a hand through his hair in frustration, mussing it up more then normal, then looked at his hands. He was troubled, worried, and wanting to find out how to help her. He just felt like he was useless. 

Eventually Marl left, and Connor was grateful for that. But that left him even more unsure what to do. He looked up at Elizabeth, hesitating, but he didn't speak.