True love is being with the person you love even if they are already married (because the love the other person previously thought was their true love turned out not to be) and betraying the Allied Forces by giving secret information to the Nazis, and thereby allowing others to be killed or injured e.g. having thumbs cut off, just so that you can reach the one you love even though she/he has already died from blood loss, thirst etc in an ancient desert cave.
"Promise me you'll come back for me. "
"I promise, I'll come back for you. I promise, I'll never leave you."
And that's true love!