Help me, I'm insane...

So I'm selling my iPad on Craigslist and I got a text from this girl who says she is a college student and was willing to buy it. I said sure and she said that she would pick it up tomorrow with her boyfriend. I instantly texted back, "Sorry, but I can't. I'm sure you are both attractive and I don't want you seeing my ugly face." She replied that looks had nothing to do with it and she just needed it for school. I literally just texted, "Are you and your boyfriend conventionally attractive?" I know a lot of different looking people find significant others. But now I'm just imagining a Chad fucking his Stacy and I'm so angry and depressed and jealous. It broke my heart and I don't even know what they look like. There truly is something wrong with me.