How long do you think it takes to fall in love? Is it love at first site, or after a few months?
There's a new study out of Syracuse University that may have an answer saying love isn't something that happens over months of dinners, late-night talks, or walks on the beach (Maybe checking out the gremlin Run… movie quote from Don’t tell Mom The Babysitter is Dead). 
According to them, when you fall in love, it takes exactly one-fifth of a second. When you're with the right person, the chemicals in 12 different areas of your brain hit the right balance and there it is, that's the moment you're in love. It's just that easy. Now keeping good relationships, not that easy!