Selena Gomez on September 22, 2012 in Los Angeles, California. Credit: Imeh Akpanudosen/Getty Images

As much as she loves her man, there are a few sacrifices Selena Gomez just isn't willing to make for Justin Bieber.

First and foremost? Though she's happy to visit the "Boyfriend" crooner while he's on tour, Gomez, 20, told Ellen DeGeneres this week she's not going anywhere near his tour bus.

"Too much boys in one bus," she explained to her host. "It gets [to be] too much."

Though she's set on riding separately during her visits with Bieber, whom she's been dating for almost two years, friends and family alike know that the former Wizards of Waverly Place star and Bieber have what it takes to go the proverbial distance.

This week, Bieber's mother, Pattie Mallette, spoke to Us Weekly about her son's romance with Gomez.

"I love Selena. She's a sweetheart," Mallette gushed. "What you see is how she is. She's good for him. They're good together. They're adorable."