The landmine

Spoke too soon when they said they knew you oh so well by now
But in your defense, you always sensed the break just around the bend
But you can't forget the silhouette that watched you from the window
With one last doubt, you turned - only to see the lights go out
Suddenly you said with a start: "this is the part where I depart. Please don't pin your hopes on me. My skin's too thin for your instability"
When you came to, you found all that you'd wished for had come true
Alone and unknown, with the latent leaden weight lifted from you
Bbut an ache in your chest was dragging down the rest like gravity
They say the x-ray found a landmine where your heart should be