Cat was visibly shaken, although she put on a good show for Bellamy when he arrived, slipping past his arms and giving him a quick hug because she thought he might need it. "Hey, that's ok." She told him with a hesitant smile, her face full of understanding.
"I hope so, I really do." She answered softly, gripping his hand and squeezing it supportively. Bellamy obviously didn't believe the news that she'd given him, or was so reluctant to accept it might be his sister that he was in a state of denial. It was understandable, although the sooner he saw the 'truth' she wanted him to see the sooner that obstacle would be overcome.
She didn't prompt him verbally, Bellamy would make the decision to go in eventually she was sure, so she moved to stand by him, a reassuring presence, ready to offer him sympathy as required, whilst positioned to stop him turning away.