I don’t mind you being older than what I thought. But all the rest of it – Christ! That pitch about your ideals being so old-fashioned and all the malarkey that you’ve dished out all summer. Oh, I knew you weren’t sixteen any more. But I was a fool enough to believe you was straight.
– Tennessee Williams
A Streetcar Named Desire, Scene 9. Mitch has had enough of Blanche’s deceit and trickery. He is not upset by her deception about her age. But he is angry that she lied and fooled him into thinking she was old-fashioned and innocent.