I Promised to Watch My Sister’s Kids Then Moved Out and Left Her Without Childcare and Now Everything Has Blown Up
She left her life and moved states for a deal: free rent in exchange for two cats to help with a pest problem and childcare on her sister’s workdays. That’s the arrangement 22-year-old OP (u/Few_Vegetable_116) described in her Reddit post: she would live with her 26-year-old sister, watch the kids, a 4-year-old and a 2-year-old, on the sister’s workdays, and take them to school.
OP even offered to sleep on the living room couch because the apartment only had two bedrooms, but the sister insisted she stay in the bedroom because she was afraid of mice. At first everything “seemed fine.” Then, within a week, the quiet agreement started to fray.
Small slights that piled up into major resentment
OP lists a cascade of boundary breaches. Her sister began to lash out over tiny things, telling OP not to open the front door when she needed medicine, getting angry about rearranging the room, and randomly leaving without warning on supposed days off, dropping the children on OP’s lap. The sister quit her job and took another one with a different schedule, then asked OP to quit her job to match the new hours. That was never part of the original deal, and OP felt blindsided.
Meanwhile OP picked up a lot of domestic labor: cooking, cleaning, getting the kids ready for school, baths, dressing them, helping paint rooms, and more. But the sister would come home, leave the kids’ mess everywhere, and get upset if OP didn’t immediately clean up. The baby would be woken repeatedly at night while the sister got ready for work, even though OP had to be up early the next day. The sister forbade locking the door, so kids wandered in on OP’s days off and sometimes broke her things. If OP tried to close the door for a break, the sister would deliberately open it or drop the kids off without warning so she could have alone time. OP felt used, “an unpaid servant,” as multiple commenters later put it.
The confrontation that ended in packing boxes
After two months of this, OP told her sister she wanted to move back home. According to OP, the sister initially said okay, but then repeatedly stalled. OP kept asking whether a babysitter or nanny had been hired, the sister always answered “No,” despite having had plenty of time. On the day OP decided to leave, the sister asked her to stay until May, claiming OP had agreed to that timeline and insisting she needed more time to find help. OP says she didn’t agree to that and that every time she tried to speak, the sister cut her off or called her childish for not arguing back.
Faced with repeated interruptions, name-calling, and the sense that her concerns were being dismissed, OP packed her things and left. Her sister has since been telling people OP broke their agreement, accusing her of jealousy and resentment. OP says she left because the sister was forcing her to watch the kids on her days off, disrespecting boundaries, and weaponizing silence and interruptions whenever OP tried to speak.
How Reddit reacted, overwhelmingly “NTA”
The top responses on the AITA thread sided with OP. Commenters called out the sister for taking advantage: “She took advantage of you and didn’t respect the agreement,” one user wrote. Another bluntly summed it up: “She wanted a wife and nanny instead of a sister.” Multiple commenters used the shorthand NTA (not the asshole) and suggested OP’s sister was exploiting free labor: “She’s a liar and someone who works to take advantage of others,” one commenter said. Practical, slightly cheeky reactions also popped up, someone asked the obvious follow-up: “You took the cats with you right?”
Readers empathized with the trap OP described: living rent-free quickly turned into an expectation that she be the default parent, housekeeper, and noise buffer. Many people recognized the classic pattern of boundary erosion: an initial reasonable arrangement that is shifted, hour by hour, into a full-time unpaid job. “Stand your ground,” several commenters urged, and others offered sympathy: “I’m sorry your sister sucks right now,” wrote one user, reflecting a common sentiment in the thread.
Family dynamics, money stress, and why this stings
This kind of conflict lands hard because it mixes family pressure, financial reality, and emotional labor. OP moved states, uprooted her life, and brought pets to solve a practical problem, and the sister’s behavior turned that sacrifice into an expectation rather than a favor. When family members assume unpaid emotional labor and domestic work as entitlements, the person doing the work feels betrayed, humiliated, and resentful. That’s exactly what OP described: late-night interruptions, kids waking her during off days, doors not being respected, and being guilted into staying longer than planned.
There’s also a reputational cost. OP says her sister is telling people she broke the agreement and is “jealous” and “full of resentment.” That gaslighting-style follow-up, rewriting the story so the person who left looks unreasonable, is part of what made commenters so vocal. They see not an isolated argument but a power play: free labor in exchange for rent, then an attempt to shame the laborer when she leaves.
What To Take From This
If you’re weighing a similar deal with family, do three things first. Put the agreement in writing: dates, duties, and each person’s boundaries. Anticipate schedule changes and what happens if one person’s job shifts, agree on timeframes and backup plans for childcare. And protect your private property and downtime: if locking your door is a safety or mental-health issue, make it part of the agreement.
If you’re already entangled, document conversations, set clear boundaries out loud and in messages, and have a safe exit plan so you can leave without being blamed for “breaking” an ambiguous deal. And if you’re the family member asking for help, remember that favors fall apart when they become expectations. Respect the person doing the work, don’t erode agreed terms, and don’t punish them when they reclaim their boundaries, that’s what turned one sister’s goodwill into an emotional car crash in this Reddit thread.
