State the lie and the truth clearly
Do not make the recipient reconstruct what was false. Say what you claimed, what was actually true, and whether any other part of the story still needs correcting. A partial confession creates another reason to doubt you.
Explain without turning context into an excuse
You can name the fear, shame, or self-interest behind the lie, but keep responsibility with yourself. The useful sentence is I was afraid and chose to lie, not I lied because you made honesty difficult.
- Correct every practical consequence of the lie.
- Answer reasonable factual questions honestly.
- Do not demand immediate trust or forgiveness.
Let future behavior carry the proof
One message cannot prove that you are trustworthy again. Offer a concrete repair, accept any boundary they set, and let consistent behavior over time do what another promise cannot.