AITA for thinking my housemates would look after my dog when I went on holiday?

After nearly a decade without a real holiday, he finally decided to book a six-week trip to Europe. He saved the money, cleared his schedule, and—most importantly—talked to his housemates well in advance about caring for his dog. From his perspective, they reached a clear understanding: they would help, and he would arrange alternative care during certain weekends and one week so they could travel too.

Now, just as the trip approaches, that understanding seems to have evaporated. His housemates insist there was never a real agreement, only a casual conversation. They suggest expensive alternatives and imply he can afford it anyway. The shift has left him frustrated, questioning not only the arrangement but the friendship itself.

It started with a long-overdue decision to finally travel

Then came a sudden reversal that caught him off guard

Old favors and shared responsibilities now feel one-sided

Clarifications only added more layers to the tension

At the heart of this conflict is a breakdown in expectations. One party believed a clear agreement had been made; the other now frames it as an informal discussion. Misaligned assumptions often cause more damage than outright refusals. When arrangements involve pets—living beings that require daily care—the stakes feel higher.

Six weeks is undeniably a long stretch. Even if alternative care covers part of that time, dog sitting limits spontaneity. On the other hand, changing terms late in the process creates stress and financial pressure. That’s where resentment tends to grow.

According to relationship researcher Dr. John Gottman of The Gottman Institute, “Unspoken expectations are premeditated resentments.” When expectations aren’t explicitly clarified—ideally in writing or with precise dates—each side fills in gaps differently. That appears to be what happened here.

Practically speaking, boarding the dog or hiring a sitter may now be the safest option to preserve peace at home. At the same time, this experience signals that future agreements with these housemates should be documented clearly. Generosity works best when it’s freely given—not when it becomes leverage later.

Here’s what the community had to contribute:

Many commenters felt six weeks was simply too big of an ask

Others focused on the timing and broken expectations

And a few commenters suggested drawing firmer lines moving forward

Six weeks is a significant commitment, especially when a pet is involved. Still, backing out after months of planning naturally feels frustrating. This conflict seems less about the dog and more about trust, communication, and reciprocity. He may ultimately need to arrange professional care, but the bigger question remains: can he rely on these housemates moving forward? If you were in his position, would you see this as a fair change of heart—or a broken promise?