Teen Mom 2's Leah Calvert Addresses the Heartbreaking Drug Dependency Keeping Her from Her Daughters: 'The Person I Used to Be Is Fading Away'

Teen Mom 2 star Leah Calvert is ready to get some help.

In an exclusive clip from Thursday’s episode of the MTV series, Calvert, 23, says goodbye to her daughters as she prepares to head to a month of drug rehab.

Teen Mom OG Stars Catelynn Lowell and Tyler Baltierra Are Married

Catelynn Lowell and Tyler Baltierra are officially husband and wife!

The Teen Mom OG stars – whose romance has been documented by MTV’s cameras since 2009 – tied the knot at Castle Farms in Charlevoix, Michigan, on Saturday.

Lowell and Baltierra’s wedding guests included their Teen Mom costars Amber Portwood and Maci Bookout.

See Jenelle Evans' Mug Shot After Her Arrest for Assaulting Her Ex's New Girlfriend

Jenelle Evans looks stoic and somber in a new mug shot following her arrest Thursday after allegedly assaulting her ex-fiancé’s new girlfriend.

On Friday, police in Horry County, South Carolina, released a photo of the Teen Mom 2 start after she was booked.

Teen Mom 2's Jenelle Evans Arrested for Allegedly Assaulting Ex-Fiancé's Girlfriend: Reports

Jenelle Evans has had a run-in with the law – for the third time this year.

The Teen Mom 2 star was arrested Thursday in Horry County, South Carolina, for allegedly assaulting her ex-fiancé Nathan Griffith’s new girlfriend, Myrtle Beach Online reports.

Go Inside the Rocky Road to Divorce for Teen Mom's Leah Calvert

Jenelle Evans Says Ex-Fiancé Nathan Griffith Is 'Never My Teammate' on Teen Mom 2

WATCH: Teen Mom 2's Jenelle Evans Argues with Fiancé Just Days After Proposal

WATCH: Find Out How Jenelle Evans Accepted Nathan Griffith's Proposal on Teen Mom 2

Teen Mom's Farrah Abraham on Botched Visit: 'I Was Embarrassed to Walk in There'

Farrah Abraham is a big fan of plastic surgery, but when the Teen Mom star’s lip procedure went terribly wrong, she turned to E!’s Botched docs for some serious help.

Teen Mom 2's Chelsea Houska: 'I'm the Happiest I've Ever Been' with My New Boyfriend

Chelsea Houska has a new man.

After spending years living the single life and dealing with the drama surrounding her ex, Adam Lind, the Teen Mom 2 star says she’s finally in a healthy relationship.

“I’m seriously the happiest I’ve ever been,” Houska, 23, tells PEOPLE of her relationship with beau Cole DeBoer. “I mean, it’s just so good I couldn’t imagine not being with him.”