Exiled from your last defense post

Your own blood made you travel far just to to tell you that you're not a part of her life. I don't know how to handle that situation.
When you lose your family, you turn on your job, or what's left of it. When there's nothing left there, it really is a small world. You'd grasp any friendly gesture left. Whatever goes.
Two lost souls meet together, nature still have some compassion left. Boy leads girls confidently, not knowing what's in front. Don't worry, he says, everything will be fine. Girl believes anything as long as they're together. That's what love should be.