Philip Lewicky

Philip Lewicky whom presumably was born around 1977 dated Paige in either high school or secondary school. When Leo and Paige travelled into the past she told Leo he was her first love and added that he gave her a necklace.

A Paige from the Past
Philip meet Paige sometime in their teenage years. They presumably hung out together until the point that they started dating each other. He gave Paige a necklace, as a token of there love. It's unknown when they actually broke up and if the relationship progressed any further.