How You Know You've Passed the Point of No Return

Guys, wondering if you've passed the point of no return in a relationship? You know, the point where you know there's no turning back, you're in it for the long run, you're hopelessly, incurably in love, a prisoner to its whim? If your girlfriend has asked you if you will go see 'Ghosts of Girlfriends Past' starring Matthew McConnaughey and Jennifer Garner and you said "Yeah, I've actually been wanting to see that," you have passed the point of no return. Actually, I read the script for that movie when I was interning in Hollywood and loved it. I guess I was past the point of no return a while ago.