I'm sorry.
I know the feeling, it's the most horrible thing, to see your friends get hurt. I'm not sure if you're saying she literally has an ocean between her and her love (as in long-distance relationship) or metaphorically. Either way, it's not the best situation. As I said, you can't stop them getting hurt, but you can be there to pick them up once it happens. And I think that's one of the greatest lucks you can have - to have a friend who sees what will happen and prepares for that, someone who'll give you support.
Indeed, it's a vicious circle, I think. I hurt you, then you go on to hurt someone else, then that someone hurts another and so on....sadly.