Safe Haven

So most of this feels like a made for TV movie from the 90s with Duhamel randomly in it for some reason. Which is fine... But how the fuck is no one talking about that ending. At the very last second I realised what was about to happened and I was just dumb founded. I mean... what the fuck!? Is this just a common trope in these movies? It was so weird and also was like... why? And what did this change about the movie even? Also WHY?! Insane stuff.