I like the simplicity of it, and the theme. But maybe you could find a way to talk about love without directly mentioning it, you know what I mean? Like, write about the theme of unrequited love in a more subtle way. Show instead of tell. :) And I also think that it sounds a bit better to say “my sweet little cold one” instead of “my sweet cold little one.” But that part is just my opinion.
I hope that helped! :)