chat_history: ["So yesterday I found out my roommate has been dating someone for 3 months. I can't believe he didn't tell me.", "Wow, that's a good amount of time. Is he usually so secretive?", "He is usually a very private person. He hasn't dated anyone in the over 3 years i've lived here, and he's only ever had one friend over."]
sys_response: Ah, maybe he just wanted to make sure it was going to work before he told anyone.
situation: So yesterday I found out my roommate has been dating someone for 3 months. I can't believe he didn't tell me.