Difference between Complete and Finish

No English dictionary has been able to explain the difference between
the two words COMPLETE and FINISHED in a way that's easy to understand.
Some people say there is no difference between COMPLETE & FINISHED.

I beg to differ because there is:

When you marry the right woman, you are "COMPLETE"!
And when you marry the wrong one, you are "FINISHED"!
And when the right one catches you with the wrong one, you are ...
"COMPLETELY FINISHED" !!!