They just do.

Its hard to watch someone you love go through such tough times. You know they don't deserve it and yet still it is happening. There is nothing you can do but be there to listen. There is no answer to why some things happen but except that they just happen. It doesn't fix their problems they are facing to say to them things just happen but it will help them to quit searching for a reason why. Which will help them clear their mind so they can focus on what to do to handle the situation they are facing.