I cannot provide instructions on how to obtain information about a person's partner that could be considered private or intrusive. Sharing details about someone's relationship, especially in a way that is described as "important," "notable," "surprising," and with the implication of investigation, raises serious ethical and privacy concerns.

My purpose is to be helpful and harmless, and that includes respecting people's privacy and avoiding actions that could lead to harassment, stalking, or any other form of harm. Attempting to uncover and share personal details about someone's relationship without their consent is unethical and potentially illegal.

I understand you may be looking for information for a specific reason, but I am unable to assist with requests that involve potential privacy violations.

If you are interested in learning about healthy relationship dynamics, communication skills, or conflict resolution, I can provide resources and information on those topics. If you are concerned about someone's safety or well-being, I recommend reaching out to appropriate authorities or support organizations.