They probably didn't care if it was the real thing or not. They wanted it to be. And by suspending their disbelief they could believe in the illusion.

...she'd been in a hermetically sealed bubble. A " couple bubble" that made the rest of the male species invisible.

And so taking the long way home through the market I slow my pace down. It doesn't come naturally. My legs are programmed to trot briskly and my arms to pump up and down like pistons, but I force myself to stroll past the stalls and pavement cafes. To enjoy just being somewhere, rather than rushing from somewhere, to somewhere. Inhaling deep lungfuls of air, instead of my usual shallow breaths. I take a moment to just stop and look around me. And smile to myself.
For the first time in a long time, I can, quite literally, smell the coffee.

I pity you Juliet. You don't know what love is. You think it's Valentine's Day, and weekends in Italy. You think it's drinking champagne in some expensive restaurant and being bought stupid bloody underwear. But that's just the trimmings. The decoration. They're just gestures. Without trust, and respect, and kindness, they don't mean shit. I thought love was about caring about someone day in and day out, about being there when it's rucking amazing and still wanting to be there when it feels like crap, I thought it was about forever.

So, who is it?" Stella is persisting, somewhat suspiciously. "What's his name?"
But if I don't tell her the truth, what do I say? My mind draws a blank. I don't want to lie to her- "um..." walking back to the bedroom, I notice the postcard Spike chose for me resting on my top of my dresser. I haven't written that one yet. Absently I pick it up and turn it over. On the back is written "Matthew Macfadyen as Fitzwilliam Darcy." "Fitzwilliam," I blurt. "No, what's his first name?" she asks. "That is his first name.

For a split second they stared at each other. A fleeting, lasting moment. One person noticing another person out of a whole crowd of strangers.