Answer:
What is it that after you take away the whole, some still remains?
I have joy in bringing two together, but darning my existence! My life hangs by a thread, filled with ups, downs and resistance!
Watches students at the prom to make sure there's no funny business.
Born in the past, but only lives in the present. Sometimes false, always personal.
An image taken from real life
All about, but cannot be seen, Can be captured, cannot be held, No throat, but can be heard. Who am I?