OK, so Catelynn Lowell spent a good long while in rehab a while back.
We all remember how this went down, but just in case your memory is a little fuzzy, let's do a quick little recap.
Last fall, she and Tyler Baltierra decided it was time to have another child, and she got pregnant pretty fast after they made that decision.
Unfortunately, she had a miscarriage.
And it was very, very hard on her.
She began contemplating suicide, but before acting on anything, she told her family, and they helped her check into a treatment center in Arizona.
She spent about six weeks there, missing Thanksgiving and Christmas, then came home.
But as we saw last season on Teen Mom OG, she really wasn't feeling much better.
In one scene, Catelynn explained to Tyler that she was still very depressed and anxious, and that she felt like she needed to go back to Arizona.
The choice caused a bit of strain on their marriage, from what was shown on Teen Mom.
He tried to convince her to do some therapy and stay at home instead, but she refused to do that.
Instead, she dropped their daughter, Nova, off at daycare without telling her that she'd be gone again, then left.
After six more weeks, she came home, and that's a bit of what we'll see in the next episode.
In the beginning of this new sneak peek, Catelynn explains in a voiceover that she's only been home for a few days at this point.
"It's been an adjustment," she admits, "but I really appreciate Tyler taking care of everything while I was gone."
Then we see Catelynn and Tyler playing with Nova, and he asks Cate if anything's different now that she's home.
"She won't leave me alone," Catelynn says, referring to Nova.
It's not the greatest thing to say, especially considering that so many fans thought she seemed too detached with her kid in earlier episodes.
Tyler doesn't seem to love the comment either.
"Mom comes back and it's like 'Dad who? That guy who has all the stupid rules?'" he says.
"'Mom, Mom, Mom, Mom, Mom, Mom, Mom, Mom, Mom," Catelynn mocks.
Yeah, it's really not sounding so good.
Later, Catelynn visits with a friend named Hayley who kicks off their chat by asking her how she's been.
She reveals that she has been a bit anxious, but that she feels it's normal in life to feel a little anxiety from time to time.
Hayley tells her that she seems happier than ever, and she agrees, which is nice.
She also tells Catelynn that she's probably more in love with Tyler than ever, after how much he's supported her.
"Oh my god, yeah," she agrees. "As a husband and wife, man, you say it in your vows, through sickness and in health, for richer or poorer."
"It's like, you gotta stand by each other, and he totally did."
Hayley pumps Tyler up even more -- he's not even there, by the way.
"Yeah, he's awesome," Cate replies.
Except she doesn't sound super convinced.
We know that Catelynn and Tyler went through some things after she came back from rehab.
He's said that he was "repulsed" by her behavior while she was in treatment, and that couldn't have been easy for her to hear.
We imagine that as the season goes on, we'll see more of their issues, but so far ...
It's honestly looking kind of bad.
And, judging by the comments left when MTV shared this sneak peek on Facebook, most Teen Mom fans are just completely over Catelynn in general.
"She is a horrible human," one person wrote. "To complain how your daughter is showering you with attention because you left her for months on end, how pathetic."
And that was the top comment, so ...
Another commenter asked "How many times does Tyler have to stand by you before you act on his feelings instead of it being all about you?"
One person said that they were "glaring at how Nova noticed her mom mocking her desperate need for attention and validation."
Things got especially savage when someone else said that "I think she's just a failure of a mother and uses her illnesses as a way to escape to rehab."
The comments go on and on and on like that, about what an awful mother she is and how Tyler needs to leave her.
Lots of people also seem concerned that she's expecting another child now, since they think she's so cold with Nova already.
Honestly, it's a real bad time to be Catelynn Lowell right now.