Formal:
* Wo da me ato?" (literally: "Are you deceiving me?") - This is a general and polite way to ask the question.
* Wo rehu me?" (literally: "Are you betraying me?") - This implies a stronger feeling of betrayal and hurt.
Informal:
* Wo renya me?" (literally: "Are you getting me?") - This is a more casual and direct way of asking the question.
* Wo reka me?" (literally: "Are you playing with me?") - This implies a more playful and flirtatious tone, but can also be used in a confrontational way.
Note:
* These are just some examples and the specific phrasing may vary depending on the specific situation and the relationship between the speakers.
* It's important to be mindful of the context and tone when using these phrases.
* Always be respectful and considerate when communicating with others.
Remember, accusing someone of cheating is a serious matter. It's important to have a conversation with your partner about your concerns and to seek professional advice if necessary.