I'll tell my best friend to take the old lady to the nearest hospital and then take the bus with the potential love of my life. Sorry I cheated but I know this one.
What would you do if you are offered to meet and be with the love of your life(never met the person before, but garenteed to be happy untill you die), but you have to live on a tropical island with only that person for the rest of your life(you are allowed to have children). Everything you ever need will be supplied any time you need it, but your never allowed to ever see anybody you know now ever again.