I was trying too figure out about why Rick and her were being paired so quickly threw the episodes, but on Talking Dead it explained it clearly too me. That he loves the "idea" of her. Having a mom for his kids and someone who is not touched into the ugliness of the world, but I do not see her hanging around long if he does go too her. As for Carol and the girl. I was unsure about her at first but she grew on me, she wants too be outside the walls and when she states "We are living in their world" too the walkers. I see how clearly she is together. So I can trust in her understanding her surroundings.