In a viral Reddit post published on r/AmITheA**hole, Redditor u/throwaway_aita_5212 (otherwise referred to as the original poster, or OP) said she and her boyfriend are living with her brother until they can afford a place of their own but recounted how a recent request for childcare caused the couple’s house of cards to collapse.

Titled, “[Am I the a**hole] for telling my brother I can’t babysit my niece, because me and my boyfriend planned a date night?” the post has received more than 5,000 upvotes and 1,700 comments in the last day.

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“The place I worked at downsized and I lost my job earlier this year,” OP began. “[We] recently moved out as the rent was too high, and…my brother ‘Jack’ let us stay at his place while we sort everything out.”

Continuing to explain that her brother’s job pulls him away from the house at varying hours, OP said she has looked after her niece “Lacey” on a handful of occasions, but only when she had no prior plans.

OP also said that a couple of days ago, her brother was unexpectedly called into work and insisted that she and her boyfriend babysit his daughter, sparking a major family feud.

“The issue was that me and [my boyfriend] were planning to go out for dinner and a movie,” OP wrote. “Jack got extremely pushy and said to take Lacey with us…but obviously [we] weren’t onboard.

“He also told us to reschedule, but we did end up going,” OP continued. “Jack was able to call in and say he couldn’t make it, but he’s been really pissed at me…we did apologize, and [my boyfriend] later said Jack should’ve planned better.

“I’d already talked to [my] mom about the situation and she told us to move to hers, so [we] will be moving out of Jack’s place,” OP added, in an update to the post. “Jack basically told us we need to leave, and I said that it’s already been sorted.”

With median U.S. rent costs cresting $2,000 for the first time in May, the lack of affordable housing across the country has never been more apparent.

Many individuals, couples and families—young, old and middle-age—have been forced to seek alternative living arrangements as a result, often looking to better-off family members for assistance and a place to stay.

As the share of the U.S. population living in multigenerational homes approaches 20 percent, it has become far more common to find full-time employees living with family, waiting for the next affordable place to pop up.

However, not all familial living arrangements are agreeable for guests or hosts, especially when the desperate need for housing pushes boundaries and household expectations to the wayside.

“I think that in these situations it is extremely important to…have good communication,” Dr. Leslie Becker-Phelps, licensed psychologist and Bouncing Back from Rejection author, told Newsweek. “It’s good communication [and] good planning.”

When welcoming a family member into their home, it is crucial that hosts make their expectations abundantly clear, from how much guests will pay in rent to how much they are expected to help out around the house.

The potential for childcare responsibilities is also a topic that needs to be discussed.

Some hosts with children will expect their live-in family members to babysit from time to time, and according to Becker-Phelps, enforcing that expectation on a relative without prior discussion is a recipe for disaster.

“It’s hugely important to have a conversation before anybody has moved in,” she said, adding that it’s “not so murky then.

“If you feel like you’re both respecting each other, then any differences can be worked through,” she added. “If either person feels like they’re being taken advantage of, then you have a problem.”

Throughout the comment section of the viral Reddit post, many Redditors accused OP of taking advantage of her brother’s generosity, focusing specifically on her boyfriend’s claim that her brother should have had an emergency babysitter on call, instead of relying on them.

“You are living in his bloody house and have [the] nerve to say he should have planned better[?]” Redditor u/Lucky_Ad_1115 exclaimed in the post’s top comment, which has received more than 16,000 upvotes.

“Right?” Redditor u/whippinflipping added, receiving nearly 7,000 upvotes. “The audacity of this…man to critique the guy literally paying his bills is mind blowing.”

Redditor u/squirreltrap, whose comment has also received close to 7,000 upvotes, offered a similar response.

“While I agree it’s on Jack to find childcare for his kid, he is letting you live rent free,” they wrote. “His help for you is significantly more than you babysitting for him a handful of times.

“Your excuse not to babysit wasn’t a very good excuse,” they continued. “The absolute least you could have done was watch her. You act like Jack asking and pleading didn’t matter, but that date night did.”

“You have been living with your brother rent free for months and can’t repay the favor by moving your date night,” Redditor u/trekie88 chimed in. “He needed you to step up.”

Newsweek reached out to u/throwaway_aita_5212 for comment. We could not verify the details of the case.