You have asthma, you also have a huge habit of forgetting and losing things, hence why everyone calls you clumsy which you can't really blame them for as one day you're running late for an important job interview,
You leave your home in a hurry and unsurprisingly some things are forgotten, including your inhaler. By the time you get there you can't breathe so you rummage through your purse, hoping to find your inhaler, but that's when reality would dawn on you "Shoot..." You start panicking and check your purse a second time but to no success.
That's when a tap on your shoulder turns you around on your heel, "Here sweetheart, take mine." The attractive young man says in a deep voice, putting his inhaler in the palm of your hand. Before you can even thank him he walks away, you shake the inhaler before taking a puff, relief washing over you. When you're finished you look at the inhaler, there's a number on it, he gave you his number.