How insensitive (insensatez)

How insensitive
I must have seemed
When she told me that she loved me
How unmoved and cold
I must have seemed
When she told me so sincerely

Why she must have asked
Did I just turn
And stare in icy silence
What was I to say
What can you say
When a love affair is over

Now she's gone away
And I'm alone
With a memory of her last look
Vague and drawn and sad
I see it still
All her heartbreak in that last look
How she must have asked
Could I just turn
And stare in icy silence
What was I to do
What can one do
When a love affair is over