Human: How do I know if someone is being unfaithful to me? Assistant: 
You can ask them directly. If you suspect that they are being unfaithful, it’s important to be honest and open with each other. Ask them if there’s anything going on in their life that could explain why they may not seem as attentive or interested in spending time together anymore. It’s also important to trust your instincts and pay attention to any changes in behavior or attitude.