Monday night on Teen Mom OG Season 4 Episode 12, things took a turn for the worse again between Amber Portwood and Matt Baier.

Meanwhile, Catelynn Lowell and Tyler Baltierra found their dream home, while Farrah Abraham clashed with her mother … as usual.

If you watch Teen Mom OG online this week, though, what will likely stand out the most is the increasing fear for Ryan Edwards’ life.

Yes, it has really gotten that bad.

Teen Mom OG Season 4 Episode 12 began with Maci Bookout gearing up to confront her ex about his erratic behavior. It wasn’t easy.

“I haven’t talked to Ryan in a while and the thought of confronting him over his drug use feels really overwhelming,” she said.

Maci told husband Taylor McKinney that she fears Ryan’s fiancee, Mackenzie Standifer, may pack up and leave over this too.

Which, she said, would be all the more disastrous, because “I just don’t know if [his sobriety] is gonna last if she’s not there.”

Ryan Edwards and Mackenzie Standifer Photo

Maci then called a substance abuse counselor to get some advice, with the goal of staging a successful intervention for Ryan Edwards.

Bookout told the counselor as the cameras rolled:

“I’m not really sure what exactly it is that he’s using. Sometimes he’ll fall asleep when you’re trying to have a conversation with him.”

“He’s really wide eyed and he doesn’t look right.”

Maci said she has been reluctant to use their son Bentley as leverage legally, as making this a custody issue would impact his family:

“I [would also] have to do that with his parents because they’re pretty much the sole caregivers of our son when he’s with his father.”

“He’s not gonna be able to see Bentley,” she said.

Ryan Edwards on the Teen Mom Reunion

“Neither will his parents. Bentley’s gonna be mad at me. He’s gonna wanna go to Jen and Larry’s and I’m not gonna be able to let him.”

This, Maci said, is not something she takes lightly.

Still, it may just come to that. Bookout lamented:

“What happens in between the time we talk and the time he goes to get help? Obviously I feel like he’s gonna use. … What if it’s too much?”

We can all say a prayer that it never comes to this … and with reports of Ryan Edwards in rehab, we have at least a little bit of optimism.

Meanwhile, viewers watched as Amber Portwood confronted rumors that Matt Baier may have cheated on her more than a year ago.

“There’s, like, fake f–king text messages, supposedly,” Amber told her producer. “They do look fake but I’m just sick and tired of this.”

Baier and Portwood

Remember, this alleged text exchange took place a year and a half ago, but when it comes to Matt Baier, past is prologue and all that.

“I just told him in the car that we need to have a break because this is getting too much,” she said. “It just keeps making me doubt everything.”

“I need to figure out what’s going on with this s–t.”

It’s been an eventful couple of months for the couple, as reports of Amber completely ending things with Matt have been a dime a dozen.

And yet, the MTV star insists that’s NOT the case!

“We’re working things out. We’re working on our issues,” Amber said in a statement to E! News recently. “That’s all that needs to be said.”

The couple’s wedding is on hold for a variety of reasons as they are “working on their relationship,” but amazingly, it’s not over. We think.

Amber, Matt, Catelynn and Tyler

At least there wasn’t all that much drama with Catelynn Lowell and Tyler Baltierra, who put an offer in on an 1800s farm house in Michigan.

Farrah Abraham wasn’t interested in playing house (so to speak) with her mom and her fiance, Dr. David Mertz. Farrah is not a fan.

On a family vacation together in Key West, Abraham said, “I don’t wanna talk to him. He bothers me so much … He seems like a creep.”

Not to put too fine a point on it.

Tensions grew as Farrah invited Simon Saran to come over, saying, “He had a bachelor party in South Beach … it’s a s–t show anyways.”

Simon, as Simon often does, stirred the pot, telling her: “I don’t wanna hurt your feelings but [David] doesn’t like you. He actually he hates you.”

Truth bomb? Detonated.