why does tophia loves patty melts from whataburger so much to the point where she is addicted to patty melts? What makes patty melts so addicting?

I've only eaten a patty melt sandwich once at Whataburger while at the NRA convention in Dallas, Texas 1 year ago as there are no Whataburgers near my home. I mean, I don't hate patty melts as it tastes alright. Not as good as a burger from Jack in the Box and Wendy's, but not the worst I've eaten. I like the patty melt, but I wouldn't call it the world's greatest sandwich as it's at best a mediocre patty sandwiched between two pieces of toast. But why does Tophia love patty melts so much to where she is constantly eating them and begging online for money to buy them? Especially since there are cheaper and tastier alternative to Whataburger patty melts. So why does tophia obsess over a mediocre patty sandwich that anyone can make at home for $10? Especially when there are cheaper alternatives at Jack in the Box