Singer-actress Selena Gomez is determined to cut all links with former beau Justin Bieber and is not responding to any communication from him, according to tmz.com. Gomez, who split from Bieber last week, wants no contact with Beiber because their break-up reportedly involved another woman.If sources are to be believed, Bieber has been begging her to take him back. Gomez was a little bit of a jealous girlfriend and Bieber wasn't really taking her feelings into regard, said a source. But they do have a chance at getting back together. "Justin doesn't see texting other girls as cheating, but he's promised Selena he'll stop if she takes him back. He is texting her like crazy trying to stay in her good graces. If either one of them slows down and they actually have the chance to spend time together again, they will end up back together," said a source.