01 - Bring a large pot of generously salted water to a rolling boil. Add the linguine and cook according to package instructions until it reaches an al dente texture. Before draining, reserve 1/4 cup of the pasta water, then thoroughly drain the linguine.
02 - While the pasta cooks, heat 2 tablespoons of the unsalted butter and the extra-virgin olive oil in a large skillet over medium-high heat. Add the minced garlic and crushed red pepper flakes (if using), and sauté for approximately 30 seconds until the garlic becomes fragrant.
03 - Add the prepared shrimp to the skillet, arranging them in a single layer. Season the shrimp with salt and freshly ground black pepper. Cook for 1 to 2 minutes per side, just until the shrimp turn pink and opaque. Transfer the cooked shrimp to a clean plate.
04 - To the same skillet, add the dry white wine and fresh lemon juice. Increase the heat slightly and scrape up any browned bits from the bottom of the pan using a wooden spoon. Allow the liquid to simmer for 2 to 3 minutes until it has slightly reduced.
05 - Reduce the heat to low. Return the cooked shrimp to the skillet and add the lemon zest. Toss gently to ensure the shrimp are evenly coated. Add the drained linguine, the remaining 1 tablespoon of butter, and half of the finely chopped fresh parsley. Toss everything together, adding the reserved pasta water as needed to create a luxurious, silky sauce that coats the pasta.
06 - Serve the Romantic Shrimp Scampi with Linguine immediately. Garnish with the remaining fresh parsley, grated Parmesan cheese (if desired), and fresh lemon wedges for an appealing presentation.