Is it normal i left a handprint on my rear windshield for over a year?

Well, there was this guy I was "in love" with right out of high school (hs bullshit) and one night after leaving a friend's house, we decided to have sex in my car in front of his house. It was a very cold night but as he warmed up thrusting in and out of me and I warmed up going any which way I could within the confined space of the car on his cock, the windows became very steamy. At this point, I was laying across the back seat and just as we were both about to come, he shot his hand up to the back window of the car. I saw his hand slide down the steamy glass just like in the movie titanic and I orgasmed like I had never before. My excitement was too much to bear for him and as I slid and cock out and wrapped my mouth around it, he came.
After that night, the hand print was still visible to me whenever I looked in my rearview mirror while driving. I always looked at and a moan would escape my lips. I left it there for about 15 months until he had long since moved away and someone else had come into my life. I still can't help but think about him even though I've been with my current bf for over 2 years. is it normal I left that on my car so long and still elicits an emotional response?