The song is "That's What She Gets for Loving Me" by Brooks & Dunn. You can read the lyrics at
http://www.lyricstime.com/lyrics/59724.html
I don't think I've heard it, so I have no idea how similar or different it is to the original. And I don't know how familiar B&D are with the original. I don't believe you can sue simply on the basis of a similar, or even the exact same, title -- not and win anyway. Now if the music and/or lyrics were lifted (or sampled or mixed, whatever you want to call it) yeah, Gord's lawyers would be all over it like cotton candy on a two-year-old.