There’s no choice in losing things or people. There are no decisions to be made, no moment when you have to master yourself and say, “Now. This is the right time.”But there's also a bit about Tony Leung there, plus my (bite your tongue*, girl) MS.
Letting go – that’s something else. There is no time to allow the choices to fall away until there are none left. You have to let go at a point where things are still potential, when something else could have happened. You have to let go in the full knowledge that regret will almost certainly follow.
*I'm hoping that talking about it at all doesn't lead to it forever being an MS.