Bring a large pot of salted water to boil.
Heat a large pan to medium-low and add the olive oil and garlic to the pan. Cook until fragrant and golden (about 1-2 minutes). Next, turn the heat to medium-high and add the cherry tomatoes, cooking for 1-2 minutes or until they start to release their liquid. Add the wine and turn heat to high. Using a wooden spoon, scrape the bottom of the pan to dislodge any brown bits.
At this time cook the pasta until 1 minute less than al dente. Make sure to save 2 cups of pasta water.
Once the wine has reduced by half, add the seafood stock and bring to a simmer. Reduce the heat to medium and cook for 3 minutes.
Add the cream and parmesan cheese and cook until the sauce begins to bubble and thicken (about 3-5 minutes).
Heat a large pan to medium-high with 2 tablespoons of olive oil. Pat the scallops dry one more time. Season the scallops with salt and pepper then sear them for 1 minute per side or until just cooked through. Add the scallops to a plate.
Turn the heat down to medium and add the remaining olive oil. Season the shrimp with salt and pepper. Add the shrimp to the pan and cook for 1 minute per side or until just cooked through, then add the shrimp to the same plate as the scallops
Add the pasta, green onions, cooked shrimp, and seared scallops to the pan. Cook until the pasta reaches al dente then turn off the heat. Taste test and adjust salt and pepper. If the pasta is dry, loosen it up with some of the reserved pasta water, a bit at a time, until the consistency is creamy again.
Taste test and season with salt and pepper to taste. Mix in the parsley and serve immediately. Enjoy!