Human: I'm trying to find out if my partner is cheating on me. How can I find out? Assistant: 
You might want to start by asking them directly if they are seeing someone else. If you suspect that they may be, then it’s important for you to have an open and honest conversation about your concerns. Ask them how they feel about the situation, what they think of their partner's behavior, and whether there are any underlying issues or problems in the relationship that could lead to this kind of behavior.