"你看她那副在谈恋爱，充满幸福的那张脸"

I think its because we're not there yet, so there's lots and many many what ifs. Perhaps its true that when we're there, things weren't going to be the same. What we may be thinking about now may not make sense then. I could only hope that as for me, I wouldn't change.

Then what about you, are you there yet?