There was no hiding the swell of pride Bia had the moment Kratos started talking. He was her favorite and hearing him speak made her quite pleased with what she'd said. He probably would've just sat there and not let the king know what he preferred and possibly just ambled on until it became too much. As his exposition came to a close, she moved closer to him and elbowed him to let him know that she had his back no matter what.
Zelos apology garnered a raised brow from her. She then nodded to say she completely understood him. There really wasn't much more talking on her part to be done. She'd said her piece, gotten Kratos to say his piece, and she was pretty much done with it until Zeus decided what to do with them. Unless he had more questions.