So I'm just gonna be frank: I LOVE crazy rough sex. Like I really do. And my bf. Loves it too. We both like and love the same things. But we've also tried other stuff too. But it's getting tiring. And then when we could have REALLY great sex, we can't. Because he gets frustrated about something. And I feel like it's my fault. What do I do to (not to sound corny but) recreate that spark?