Wow. This is quite a chapter in their lives.
I don't usually comment about writing, as usually, if I notice the writing, I am not engaged in the story enough to keep my interest. In this chapter, I did not notice anything other than the story and the character interactions.
That said, I can look back and say some things about this story that may interest you as an author. I found the characters' interactions to be natural and believable: I did not notice anything jarring or anything that pulled me out of the story.
Good work!