Cyndee, you're right. I don't know why I thought it was Kenny Rogers, lol. But thanks for guessing mine anyway!
Yours is "Happy Together." I think. (I don't trust my memory anymore, lol.) The Turtles.
Here's one, although I'm not sure I'm remembering the lyrics correctly --
"Don't know that I will, but
until love can find me,
The girl who will stay,
won't play games behind me"