My approach has always been to put 100% into the movie I'm making right now. I think sometimes filmmakers put too much thought into the grand franchise they're going to build. And guess what? If the first movie doesn't work there is no franchise, so I'm always concentrated on making the best, best possible movie right now.
There are certain relationships in our lives that implode, and it can feel really inexplicable and terrifying. You don't know why, and sometimes relationships end for reasons that one person keeps from the other person, and it's just totally unclear, and it just goes south and it's heartbreaking.