Teen Mom 2’s Chelsea Houska spent a relaxing day with her daughter at the pool … and another ex-girlfriend and baby mama of Adam Lind!

The engaged reality star, who will marry Cole DeBoer later this year, shared a photo of her daughter, 6-year-old Aubree, and her half-sister.

Those who watch Teen Mom 2 online know that Adam Lind fathered another daughter, 2-year-old Paislee, with Taylor Halbur in 2014.

He’s pretty much been a deadbeat dad and derelict of society when it comes to both women and their little girls, so he’s … consistent?

No wonder Chelsea and Taylor, once rivals, have become so tight.

“Perfect day for the pool @tfhalbur89,” Houska captioned the pic.

Houska and Halbur used to be at odds due to Halbur’s relationship with Lind, but soon bonded over mutual custody struggles with him.

In March, Houska spoke out about those struggles during an interview in which she expressed doubt that she could ever truly trust her ex.

“It’s going to take so long, I don’t know. There are things that happen where you think it’s getting better and then he does it again,” she said.

“It’s always kind of up and down.”

As for those Adam Lind nude photos this year, Houska said, “I mean, it just shows where his head’s at and what his maturity level is.”

Lind recently hinted that he was not planning to return to Teen Mom 2, and if he goes through with that, we know one person who won’t mind.

Or two, if you count Taylor Halbur?

“I have no idea. If he chose to not be on the show I’m perfectly fine with it,” Houska, whose relationship with him is strained at best, said.

As for his relationship with Cole?

“They don’t talk or anything. If they’re at the same function for Aubree they’ll say hi but that’s about it,” she said of her current fiance.

Hey, that’s as good as it’ll get.

For a look back at some of Adam’s greatest (lowest) moments over the years, scroll through the gallery below and feel instantly better.

About your own life, that is.