One Last Caress

I've never done anything like that before.
You entered the room, resplendent in your new lingerie, purring that you'd bought it to please me.
Little did you know, I saw you and your "friend" today; I left work early.
It began as a caress; my hands on your arms, and then your shoulders.
Before long, I was stroking your long neck, and looking into your deep, deceitful blue eyes.
Had you said no more, the urge would have passed, but you just had to confess your love and devotion to me, didn't you?
That was when caress turned to strangle.