I Even Drove Her to Her Ex's

At first, I wasn't watching, I wasn't parked there to spy. It was just coincidence, the way the driveway angled, the way the trees thinned out. I only noticed the broad front window because I inched forward, just a few more feet.
Through that narrow gap in the branches, I saw movement. I was staring, blank, distracted, mind full of her. And then, she appeared.
Nina. Right there in the middle of the guy's living room. I startled like I'd been caught, even though I hadn't. No way she could see me.