Perhaps that's the path you were meant to follow. If there's fate it must apply to negative things too.
Isn't the path that you are travelling the one that you are meant to travel? Otherwise you would be travelling a different path. I think your question is a bit unclear.
But you have two questions in there. The first one to me is incomprehensible. As for the second one, yes I do travel my lifepath alone. Everyone kind of does, since they must make their own decisions and beliefs, and act on them. But I guess when you have a really close relationship with someone, your paths are intertwined.