Elusive country song...

So I've been trying to pin down a country song I'd heard over the speakers at work off and on for the past year, and for the life of me I cannot find it anywhere! It's by a female artist and the chorus is (I believe) "I'm on a ro-o-o-o-o-ll"

Lyrics include:

"Everything is comin' up ?seven?"

"?Couldn't get better on this side of Heaven?"

"Little did I know that I would find my blue-eyed Mr. Right"

"Actually, it's DR. Right"

And something about "Take the girls out to celebrate" and mention of "chocolate cake".

Please help! It's a good song! I wanna find it and add it to my playlist.

My wild guess is "Mr. Right" by Emma Hill and Her Gentlemen Callers