Millions of single moms receive child support from their former partners.
Of course, most of those moms aren't famous and independently wealthy.
Thus, the situation is complicated in the case of reality stars like Kailyn Lowry, who out-earns the average American single mom by about a bajillion percent.
Even so, until recently, Kail was receiving child support from her first baby daddy, Jo Rivera.
Now, the tables have turned, and Jo thinks Kail should be writing him a check every month.
Needless to say, Kail's not having that sh-t at all.
Take a look:
Not Seeing Eye-to-Eye
It's a complex situation, as both Kail and Jo are decently well-off, but here's how it played out on Monday night's episode of Teen Mom 2:
Kail and Jo's son Isaac is now 9 years old. Since he was 8 months old, Jo has been making child support payments of $475 per month.
On Monday night's episode, Kail learned that Jo not only wants to put a stop to all future payments -- he also believes he's owed something in return.
The Bad News
"I should let you know Mr. Rivera thinks you're a payday for him now that you have shared placement and thinks that he can get over $1,000 a month from you," read a text Kail received from her lawyer during the episode.
To be clear, Kail doesn't need the money she's been receiving from Jo, and she's the first to admit that.
She says she meant to put a stop to his payments, but simply never got around to it.