Do you really know when you've found "the 1" Married my wife after 11 months, still together 5 yrs later.
Do you really know when you've found "the 1" in all seriousness though, no there isn't "the one" it's a hollywood perpetuated myth, there's a lot of people who can make anyone happy.
Do you really know when you've found "the 1" its the 'one' that u can put up with for the next 50 odd years