Marinated Artichoke and Pancetta Pasta

Name: Marinated Artichoke and Pancetta Pasta
Ingredients: 12 oz. spaghetti; Kosher salt; 4 oz. pancetta (Italian bacon), cut into ¼ pieces; Extra-virgin olive oil (for pot); 2 12-oz. jars marinated quartered artichoke hearts, drained; 4 garlic cloves, thinly sliced; ¼ tsp. crushed red pepper flakes; Freshly ground pepper; 2 oz. Parmesan, finely grated (about 1 cup); 4 Tbsp. unsalted butter; ¼ cup finely chopped parsley; 2 Tbsp. fresh lemon juice