Selena Gomez</a> refuses to slow down when it comes to her rekindled relationship with boyfriend Justin Bieber,</a> despite her mom’s pleas.<br /><br />And now, less than a month after she was hospitalized after a reported argument with her famous daughter</a>, Mandy Teefey has given up on fighting the controversial romance.<br /><br />“Mandy knows that it is a battle she cannot win, and she is not about to mess up her relationship with Selena again over this,” a family friend told Radaronline.com<br /><br />Plus, though she is having “a really hard time believing” he could change, Bieber has been on his best boyfriend behavior, the insider added.<br /><br />“Justin has been trying really hard to prove Selena’s mom that he will not hurt her again,” the friend explained. “Selena’s entire family is very weary.”<br /><br />“Selena swears that her relationship with Justin is different this time because they both have finally found God.”<br /><br />As Jelena fans know, the couple spent the New Year’s together on a romantic vacation in Cabo San Lucas, Mexico.</a>
