ST. LOUIS (KSDK) - Relationships with friends can be tricky if your friend is doing something you think is wrong.
This week our "relationship ref" Pattie Cashman tackles a tough topic: what you should do if you know your best friend is cheating.
Cashman says it's important to reach out and have a conversation.
"It's not getting involved in their drama. Unfortunately you can't get involved in their drama even if you wanted to. What you can do is tell you friend I care for you and this is dangerous, and I'm scared for you. If I know about this, many other people know about this. Somebody's going to share this information with your wife, and is this what you want? Bust your marriage open? If you do, why don't you go home and tell her," said Cashman.
To hear everything Cashman had to say on the topic, click the video player above.