I have that feeling. I feel "homesick" sometimes.
Earth can sometimes be cruel. I don't like the fighting, the wars, or the kidnappings all over the world. I don't dislike Earth. Earth is beautiful with the rivers, forests, and animals. It's sad when people take advantage of what they have. The pollution in the air, animals are going extinct, and so on. I know many people aren't like that, but it's sad to think of those who are.
I always wish to be in a place where it's always peaceful with no fighting, and you won't get sick. Everyone around you will be kind and you'll be accepted as who you are no matter where you go. That's what I imagine Heaven will be like.
I agree 100% - who wouldn't take that offer?