Shelby Woods just called out someone for being a "pill head" and a "thief" on her Twitter page.

Ryan Edwards Wishes Shelby Woods A Merry Christmas

Although the ex-girlfriend of Teen Mom star Ryan Edwards didn't reveal who it was she was referring to, she certainly got the attention of her many fans and followers online.

"You're a pill head and a thief. Niceeeee," Woods wrote on Twitter on Thursday.

Ryan Edwards & Shelby Woods May Not Be A Couple, But They Are Still Friends

In recent weeks, Woods and Edwards, who initially split two months ago, have been back and forth on Twitter. However, while Edwards seems insistent on getting back with Woods and proving his love for her, she seems more unsure, and hasn't been nearly as vocal.

For the last several months, Edwards has been filming scenes for the upcoming fifth season of Teen Mom, in which he stars alongside ex-girlfriend Maci Bookout, the mother of his 6-year-old son, Bentley.

Although Woods' appearance on Teen Mom season 5 has yet to be confirmed, it certainly seems likely, considering Edwards' former girlfriend, Dalis Connell, appeared on an earlier season of the show.

If Woods does appear on the show, fans just may get a look at what drove her and Edwards apart after a year-and-a-half of dating.

Teen Mom season 5 premieres later this year on MTV. In addition to an update on Edwards, fans will also be seeing Bookout in the early stages of her current pregnancy.