A shared fence is easier to maintain than a long record of unspoken complaints.

Small irritations kept quiet do not stay small. They gather into a case, and by the time it is finally presented the other person is answering for months of things they never knew about. The practical job in front of you is almost always the cheap part. The stored resentment is what becomes hard to repair.

Pick the one small thing you have been quietly filing away and raise it plainly, as a question rather than a charge. Keep it to what is in front of you this week. A short awkward exchange now spares you a long unfair one later.