"I don't like my marriage at all," admits Bristol, before the two seemingly decide to call it quits.
In an hour filled with depression, custody concerns and relationship woes, it was Palin's storyline that proved the most compelling.
Following the blowout over Dakota's PTSD and how they each cope with it from the premiere episode, the two spent the beginning of Monday's episode venting separately to one of the show's producers.
"I'm resentful that he can sit here and call me these names, 'You're a bitch,' I'm this, I'm that and it's just draining," said Bristol. "It's just draining to be beat up all the time. I wake up in the morning like, what's his mood going to be today, what direction should I go, what am I gonna do wrong today, what's going to trigger him?"
"I live my life on complete eggshells, I think everyone in this house does, even the kids," she continued. "I don't want to think of my myself as a quitter, but I do think that we've exhausted most all the efforts. It's not that I don't love my life here, it's that I don't like my marriage at all."
In his own producer sit down -- which he did after walking out on Bristol last week -- Dakota said he still loved his wife.
"For me, the dilemma is, I love Bristol but you can only do that for so long and not get it back," he explained. "If someone tells you that they don't want to be there for you, or they're not strong enough to be there for you, don't be an idiot like me and not believe them."
He added that he didn't want to keep turning to people outside of his own home for help and was against the very idea of divorce.
"Quitting and throwing the towel out, it's going against my beliefs in the Bible," he continued. "You name every moral fiber of my being, this is what it goes against. I live by honor, I live by integrity, I live on 'Never quit.' It's not a cool TV phrase to me, it's who I am and as much as I'll fight against you, I'll fight for you just as hard."
Finally, the two sat down together again, but voiced most of their concerns to the producer in the room with them and not each other.
"We're both unhappy. I was a single mom for a long time, but being married, I'm more lonely now than I've ever been and I know he's probably more lonely now than he's ever been," said Bristol. "I don't think we know how to coexist together, at all."
In Dakota's mind, "99 percent" of their problems revolved around his PTSD. The former Marine received the Medal of Honor after 2009's Battle of Ganjgal, where he witnessed the deaths of his entire team.
"I totally take responsibility of becoming cold and I am sorry, I'm sorry that I'm that way," Bristol said in response. "I don't think you deserve to have a wife that that's way. And I want you to have sense of peace. I do feel like we're better people when we're not together."
Dakota went on to compare separating to losing his team in Afghanistan. "For me, I guess I get that same feeling that I do with my teammates, I've failed again and I'm helpless again," he explained. "I know where my heart is for her, I know that I love her and I give my everything."
"We're quitting on our marriage," he added when she said he wasn't a failure. "The only people that are gonna suffer are our kids, we're quitting."
"Our kids are also gonna suffer and I think they would suffer even more if we sat here and continue to do this relationship," Bristol decided. "It's not a good situation. It breaks my heart because I do love you and I think you're the most incredible dad and it breaks my heart that we're never able to sit here and be teammates with anything."
Dakota said splitting was "not what I want," before telling her that he'll "still be here" and that he loved her.
"I do love you too and I know we love our kids and we'll always do what's best for our kids, 100 percent," she said, tearing up. "They're just my world and I know that this situation is not what's best for them."
She was last seen consoling him, with her mind seemingly made up.
Catelynn got out of an Arizona treatment center for depression and anxiety, explaining that she'll still see a trauma therapist 3 times a week for PTSD. It was tense between her and Tyler, however, as he previously expressed resentment towards Catelynn to his therapist last week.
When he said his therapist suggested they watch the last season of the show together to see what he went through while she was in treatment, she wasn't having it. "I know you took on a lot, but do I have to put myself through all of that sadness and hurt and drama all over again?" she asked. He eventually gave in, but the tension didn't go anywhere.
.@AmberLPortwood admits she’s been through some emotional highs and lows since James’ birth: “I’ve never been happier—but I’m depressed.” Don’t miss an all-new #TeenMomOG tonight at 9/8c on @MTV. pic.twitter.com/7ytkJMSHca— #TeenMomOG (@TeenMom) October 8, 2018
Amber revealed she went back on antidepressants and anxiety medication after feeling depressed again, which her doctor attributed to her being bi-polar.
"I've never been happier, but I'm depressed. It just makes you feel kind of stupid, like what's wrong with me kind of thing," she said.
While on an at-home "date night" with baby daddy Andrew Glennon, she called him a stabilizing force. "Every single day there's something that you do that makes me feel loved and not worried about my future anymore," she said, "all I wanted was love and a good future and a family. This is the first relationship I haven't doubted my future with somebody."
After Maci got an order of protection against ex Ryan Edwards, their son Bentley had his first overnight visit with his dad, supervised by his parents. "I trust them, but I'm always so scared something bad is going to happen," she admitted before he left.
Elsewhere, her son Maverick finally got a haircut.
Cheyenne Floyd's storyline continued to be one of the least engaging, as she and her baby daddy Cory Wharton argued over whether she should tell her father that her current boyfriend, Zach, moved in with her.
Eventually, Cory spilled the beans while getting co-parenting tips from her father and stepfather. Her dad, Kyle, seemed disappointed she didn't feel like she could tell him, before he said his love comes with "conditions," something that set off Cheyenne.
"Teen Mom OG" airs Mondays on MTV.