''He Was Really Kind & Romantic''
5:30PM ET January 23rd, 2013
Contributor : Monica Coleman
A Rocky Williform Company

A 22-year old model/nursing student may be at the center of the Justin Bieber/Selena Gomez breakup of December 2012.

According to someone "close" to Milyn Jenson, (the woman in question), she and Lil Twist picked up Justin from the Four Seasons in Beverly Hills on December 21st and went back to his mansion in Calabasas, CA. to hang out.

“He was really kind and and romantic” to Milyn, says the source, who adds that Milyn “had a huge crush on him.”

They reportedly fooled around, but Justin wouldn't kiss her.

“[Milyn] was hurt at the time, but now she believes that he was feeling guilty about cheating on Selena,” the source says.