Oh honey, the AUDACITY of thinking you can just have two things talk to each other directly! That's barbaric! Uncivilized! What are we, cavemen writing spaghetti code?! No no no, the "solution" is to add a mysterious third wheel—sorry, I mean "abstraction layer"—right smack in the middle because apparently Thing 1 and Thing 2 can't be trusted to have a healthy relationship on their own. Now instead of one chaotic mess, you've got DOUBLE the arrows, TRIPLE the complexity, and a brand new component that exists solely to play telephone between two things that were doing just fine before! But hey, at least your UML diagram looks *professional* now with all those fancy bidirectional arrows. Your professor will be SO proud. Never mind that you've just turned a 5-minute implementation into a 3-day architectural odyssey complete with interface definitions, dependency injection, and an existential crisis about whether you're solving problems or just creating job security.