Valentine Idea---A Bust

After getting the shot of us kissing with the moon behind us. I went to print it out at the only thing that shows up is the moon. Crappy!!! It does print out to be a cool moon pic but that wasn't quite what I was going for. So my valentine idea is a total bust. It's a shame because I really like the picture. I like how it looks like there is a heart around us. I tried to photoshop it but it ruins it if I lighten it up. I'm not great with photoshop, so if any of you know any tricks that would help. Please let me know.