<p>Amber Portwood is really trying to be the best mother she can be, but is it working?</p><br /><p>In a Teen Mom OG sneak peek clip, Amber and Matt Baier were driving with her 8-year-old daughter, Leah, and they begin discussing Christmas.</p><br /><p>Amber asked her daughter if they plan on making anything for the holiday season at school and the answer leaves her heartbroken!</p><br /><p>Watch the clip above! Teen Mom OG airs Monday nights at 9pm ET, only on MTV!</p><br /><p>The post Amber's Nightmare! Portwood's Breaks Down In Tears After Leah Chooses Gary Over Her</a> appeared first on OK! Magazine</a>.</p><br />