Just a couple of weeks and already you're being left to uncertainty and dissapointment? Imagine what a little more time will brew.
You are a valuable being, and need not a person that still has feelings for another.
Better alone than in bad company. Better to know now than when you become attached to this person.
Why risk having your soul and spirit trashed? If you're not afraid - go bungee jumping instead. This way, it will be over in a day, and you'll be back to normal the next. The broken heart route - will take years to heal - if ever.