Alena never forgave herself that she didn't save her brother back then. She blamed herself every day for that and she was always afraid that maybe one day someone will find out about her and hurt her dad. James didn't respond but Alena sensed that he's sad and disappointed.
He's been like this for a long time but he still tries his best to be strong for Alena's sake. She thinks that it might have something to do with his brother. She just knows that it's important for James to be strong, he's always so worried that he may let her down.
So she didn't say anything about it and...