Poetry or lyrics about lovesickness in a different place and a person you obviously like but can't say.

I don't know if my belt is getting wider and wider, but I don't regret it, because it will make people haggard and miss. I'm embarrassed to meet at this time, and I don't want to see it. I just hope your heart is the same as mine, and I will not live up to it. The furthest distance in the world is not the distance between a bird and a fish. One is in the sky, and the other is deep under the sea.