TEXAS, US TS - Selena Gomez says there is no chance of another reconciliation with ex boyfriend Justin Bieber.  Sources have told RadarOnline that the former Disney babe is telling pals she’s done with the troubled teen ... for good. After a rollercoaster off and on romance for more than two years, Selena confirmed their most recent split to a Boston radio station saying ‘Yep’ when asked if she was single.  Friends, including pop star Taylor Swift, have been urging Selena to cut all ties with Justin for quite some time. And now she is calling on them to make sure she doesn’t fall for his smooth moves again.  An insider said: “Selena’s no angel herself, but Justin is certainly not the type of boy she needs. She’s finally taken some of their advice to heart and swears it’s finally over with him, for good. She doesn’t see herself getting back together with him and just needs to move on.”  The star is keeping herself busy with her flourishing career and has a new arrival in the family to look forward to. The source added: “Selena’s mum is pregnant and her music career is booming. Meanwhile, Justin is on a downward spiral and Selena wants nothing to do with it. For a minute she thought she could ‘save him’ which is why they got back together the last time. But she’s over him and his childish behaviour.”  Justin’s troubles continued this week when his security team were also hit by a battery allegation. Last week he was also hit by a second paternity claim and it emerged he is being investigated for reckless driving.