I can provide some general advice on the situation you described.
When it comes to relationships, honesty and communication are crucial. If you have cheated on your partner and they confront you about it, it's generally best to be truthful. Denying the truth can often lead to more harm in the long run, as it can erode trust and create further complications.
If you genuinely regret your actions and want to work on rebuilding trust and repairing the relationship, owning up to your mistake is an important step. It allows both of you to have an open and honest conversation about the issues, emotions, and concerns surrounding the infidelity.
Of course, every situation is unique, and there might be various factors to consider. If you find yourself in such a situation, it might be helpful to seek advice from a trusted friend, family member, or a professional counselor who can offer guidance and support during this difficult time.