This is probably extremely obscure. I saw it over a decade ago and felt disturbed by it. (It's basically my "Cracks".) Now, I'm a grown up, and I want to perform it.
But in order to perform it, I need to find it. To my knowledge, it was performed with three other monologues at the Nickle Theatre in Mount Royal University, then known as Mount Royal College, in 2001 or 2002.
It featured a young woman who "carried her heart in a paper bag." She took good care of it. One day, she met a man and he suggested they trade hearts. He was using his as an ashtray. She tried to take good care of his heart, but eventually learned that he was keeping hers on a nice pillow, covering it in cigarette butts. She took her heart back. The last line was, "I know my heart belongs somewhere, but not in a paper bag."
So far, my research has not been very successful. I have not determined if it was a monologue written by the young woman or if it was written by another party, and I haven't located it yet.
I am not sure what actions I should take to find the monologue. I still know the person who took me to the event but haven't spoken to her about this.