When I was in high school, my girlfriend texted me a photo of me kissing some girl (not her) who was sitting in a swing. At first I thought "Woah who is taking

When I was in high school, my girlfriend texted me a photo of me kissing some girl (not her) who was sitting in a swing. At first I thought "Woah who is taking secret pictures of me?!" but then I realized I didn't recognize the girl I was kissing in the photo. So at that point I'm really confused -- there is a photo of me kissing a girl I don't know, in a park I've never been to. Photoshop? Is this a prank? My girlfriend then quickly follows up with "Weird right? I met this couple at the park and he looks just like you from the side. From the front he has a bit of a wider face, though. And he's Italian." Had she not told me that, I would have completely believed that I'd been photoshopped into a photo. I couldn't spot a single dissimilarity. I wonder if any relationships have ended because someone's significant other saw what looked like them with another person.