"The Old Version"
If you love somebody, Set her free...
If she comes back, she's yours,
If she doesn't, she never was..
Some of the newer versions...(well probably been on the net forever but i just found them, lol)
Patient
If you love somebody, Set her free ...
If she doesn't come back, continue to wait until she comes back ...
Playful
If you love somebody, Set her free ...
If she comes back, and if you love her still, set her free again, repeat
Over possessive
If you love somebody don't set her free.
Suspicious
If you love somebody, Set her free ...
If she ever comes back, ask her why.
Paranoid:
If you love someone,
When you let her go,
she'll be out to get you.
Go-getter:
If you love someone,Set her free ...
If she comes back, she's yours,
If she doesn't, go get her !