"How do you know, when you've fallen for someone in a long-term, could marry, settle down forever sort of way? Please don't say 'you can't imagine life without them' or similar because I can't imagine life without Hattie but I don't want to marry her. Something that might give me real insight."Oh . er.' This was a role reversal, Laurie ... feeling like the knowledgeable one. "Hmmm. It feels like a conversation that you never want to end, I suppose. A renewable energy source. You know how with some people you can't get chatting off the ground? They're hard work? Falling in love is the extreme opposite. Endless fascination. It's effortless. A spark turns into a flame turns into a fire. That doesn't go out.