<human>: I'm not sure if my partner is cheating on me, what should I do?
<bot>: The first step to take when you suspect your partner of cheating is to talk to them. Ask them directly if they are having an affair and listen to their response. If they deny it, then ask yourself why they would lie about something like that. You may also want to look for signs of deception such as changes in behavior or communication patterns. It can be difficult to know for certain if someone is being unfaithful, so don't assume the worst until you have all the information.