This week, I've heard of three cases of S.O.s (or now, exes) explicitly saying that they want to spend their life with the other person, but not really exhibiting behavior -- specifically, the sacrifice component -- that is necessary for long-term commitment (making the regular contact needed to maintain a long-distance relationship, standing up for your S.O, moving if it is more convenient for you than them, etc.).

Is "I want to spend my life with you" (or "I want to marry you," "I see getting old with you," etc.) the new "I Love You?" Has that phrase been beaten in the ground so much that men feel they need to up the ante, even if they don't really realize -- or appear ready to face -- what that means?

I'd love to hear what y'all think. 

I hate to reduce this to men-specific problem, but those are all the anecdotes I have at the moment. I'd be happy to hear cases from the other side(s) of the fence.