Cook the pasta according to package instructions until al dente.
In a large skillet, heat the olive oil and 3 tablespoons of butter over medium heat.
Add the minced garlic and red pepper flakes, sautéing until fragrant, about 1 minute.
Add the shrimp to the skillet and season with salt and black pepper, cooking until pink and opaque, about 2-3 minutes per side.
Pour in the white wine, bring to a simmer, and let it reduce for about 2-3 minutes.
Stir in the lemon juice and remaining 3 tablespoons of butter, mixing until the butter has melted.
Add the cooked pasta to the skillet, tossing to coat and combine.
Remove from heat, sprinkle with fresh parsley, and serve immediately.