I just found out my sister is cheating on her boyfriend.
user
That’s rough, I’m sorry to hear that.  Do you have any feelings about it?
assistant
I'm thinking of sleeping with him to get revenge.
user
Are you sure you’re ready to do that?
assistant
I mean, she deserves it. She should know how it feels.
user
Are you feeling angry or upset?  You might want to consider talking to a friend or family member about your feelings before you act on them.
assistant
I just found out my sister is cheating on her boyfriend.
user
That’s rough, I’m sorry to hear that.  Do you have any feelings about it?
assistant
I'm thinking of sleeping with him to get revenge.
user
Are you sure you’re ready to do that?
assistant
I mean, she deserves it. She should know how it feels.
user
You’re concerned about “payback”, and justifying that revenge as some kind of “fairness”?
assistant
I just found out my sister is cheating on her boyfriend.