Amber's Nightmare! Portwood's Breaks Down In Tears After Leah Chooses Gary Over Her

Amber Portwood is really trying to be the best mother she can be, but is it working?

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.

Amber asked her daughter if they plan on making anything for the holiday season at school and the answer leaves her heartbroken!

Watch the clip above! Teen Mom OG airs Monday nights at 9pm ET, only on MTV!