'Teen Mom' Stars and Their Kids

"I'm tired of being nice about the situation, he's mine too, he's not just hers," says Ryan.

Ryan Edwards came out swinging against Maci Bookout on Monday's reunion episode of "Teen Mom OG," where he spoke out about his drug problems and time behind bars, but put the blame on his ex when it came time to talk about his fractured relationship with son Bentley.

Sitting down with Dr. Drew Pinsky and cohost Nessa, Edwards explained that it had been "a few months" since he was in jail for violating probation. While in jail, Edwards -- who has also been to rehab for heroin addiction -- missed the birth of his son Jagger, as well as time with the son he shares with Maci.

He first said his sobriety was going "good," before talking about what led to his opioid problem.

"Mine started out with painkillers and addiction wasn't even thought of," he revealed. "I remember the first time I felt uncomfortable, I was in Atlanta and I didn't know what it was, I thought I was just sick."

Dr. Drew pointed out that he was likely feeling withdrawals, to which Ryan agreed. Eventually, the painkillers gave way to heroin.

"I don't know what made me start using heroin, I can't remember why I did but I did and once I did, I never went back to doing anything else," he continued. "Mackenzie asked me what it's like and I describe it as living in a cage and you can't do anything you can't go anywhere, you can't travel, it's awful. Unfortunately, I don't know what's going to happen tomorrow, I can't say I'll be sober for the rest of my life, I don't know that. I'd love to be and I'm willing to do whatever it's going to take."

He said that he hasn't really explained too much to Bentley, 10, saying it's "hard" to get into it all with him still. Pinsky then asked how it made him feel when Maci said Bentley views Ryan as more of an "uncle or friend" than father during the season ... and Edwards was not happy.

"Maci talks a lot of shit. I'm tired of being nice about the situation, he's mine too, he's not just hers and it doesn't matter what she says, it matters what I know and what really happens and what I see," he shot back. "She can say I'm his uncle, she can say ... I don't give a f--k to be honest."

"What is affecting my relationship with Bentley is Maci," he continued. "I don't know what she tells him about me, I'm sure some of it's probably not good. Then she goes on TV and says whatever she wants."

He said the two parents have to "build a relationship together," something his wife Mackenzie said was difficult thanks to the restraining order Maci and Taylor McKinney have against Ryan. Bookout got an order of protection against Ryan following threats he made to her husband and their family and while she considered revoking it, she has yet to do so.

"Either that restraining order has to be lifted or we have to wait until next May when it goes away," said Mack. "You wonder why Ryan doesn't reach out to you, because he legally can't.

Appearing separately to tell her side of the story, Bookout explained why she hasn't dropped the restraining order just yet.

"We have decided against dropping the order, mainly because, honestly, for both Ryan and myself, this past year not talking to each other has been good," she said. "I've been able to work through my process and what I think about him, my anger, without him and I getting into another argument."

When Drew suggested dropping the order would help Ryan and Bentley have a better relationship, McKinney shot back, "Why is that her responsibility?" Maci also added that her son sees a counselor "regularly" and has been told enough about Ryan to keep him from "being blindsided."

"Teen Mom" airs Mondays on MTV.