Clarify the agreement that existed
Identify the promise, policy, schedule, ownership, or shared understanding that applies before assigning blame. For a message about how to apologize for comparing your partner to an ex, use this factual base: name your behavior, its likely practical or emotional impact, and the agreement or trust it affected.
Resolve the next dependency
State what is complete, what remains disputed, and which action would move the situation forward. Offer a specific change the other person can observe and ask what repair would actually help. Make the immediate next step clear enough that the recipient can answer without reconstructing the entire history.
Document without threatening
Do not explain away the behavior, bargain for affection, or use gifts to skip accountability. Respect separation, no-contact, and safety plans, and use professional support when coercion or abuse is present. Keep a factual record and describe only remedies you are entitled and prepared to use.