Country Music Video: "Here Comes Goodbye"

I have a favor I need to ask all of you out there. I have loved Rascal Flatts new song "here Comes Goodbye" since it was first released last month. I saw the music video for "Here Comes Goodbye" for the first time last night and I don't really understand it. When I listen to this song I picture it as a girlfriend breaking up with her boyfriend. This video seems to be about a women crying about her dad and her son dying? Also, is that the same girl from the "What Hurts the Most" video? I might just be over thinking it I am just very confused and wondering if anyone can explain it to me :)