"And I'll help you out even more. There's no way I'm letting you do this alone." She says it in a stubborn manner, refusing to let him be alone in this.

She's there for him. It might not mean a lot for now but, sooner or later, she could stumble across something that can help him out. Maybe. "What do you think you should do next? Find a base of operations, so to speak? Look up old faces?"