Amber Portwood might be focused on being single right now, but that's not keeping her longtime on-and-off boyfriend Gary Shirley from spilling his heart out to her. This troubled twosome has been separated for a while (both have reportedly been dating other people), but it seems that Gary's anxious to get his baby mama back. In fact, TMZ.com just posted a recording of Gary singing Lonestar’s "Amazed." "She totally melted when she saw [the] acoustic guitar video he made for her," said the site's source. Watch it here and tell us what you think of Gary's love song!