I hope one of the reasons that Alexa hugs him is that she knows he's trying to help her. (I also hope one of the reasons is that she just loves him.)

This is probably the healthiest picture of a family coping with trauma and loss that I've ever seen. There's a lot broken here--and given what's happened, it should be--but from what we're seeing, there are a whole lot of things that are working the way they're supposed to. (A wound may heal in ways that mean that part of the body will never work the same way again, but you can avoid having it get infected in the meantime, if you're lucky and you take care of yourself.)