In a moment you realize how short life is
Next moment you realize you love someone so much life with out them seems like a black hole.
What do you do?
Reach out & hold on
Make uninhibated sex.

Or express you're eternal fire for them
Perhaps, you remain silent let the moment pass & wish you had done one of those things.
Regret isn't worth the moment
Don't just wish your life away
React in the moment.