Pickpocket: During your youth your family fell on hard times forcing you to turn to petty theft and other criminal activities involving you with criminal organisations.
You spend time with a spell-caster who teaches you a minor cantrip as a parting gift, learn one cantrip from a spell-casters spell list (DM's Discretion)
You find yourself in love with another, wither it is a fling or something more serious is up to you. (work with your DM to detirmine if it is ongoing or terminated)