answer: Ben tells #Person1# that he and Camilla are breaking up because Camilla is possessive but doesn't know how to tell her. They both think Camilla will be hurt.
documents: #Person1#: Hi, Ben, we're having a party tonight. Do you want to come and join us? You can bring your girlfriend.
  #Person2#: Well, actually, Camilla and I are breaking up.
  #Person1#: What happened? Did you have an argument?
  #Person2#: No. She is really a very nice girl.
  #Person1#: Yeah, she is. She is pretty, caring, and easy-going. And she's a great cook!
  #Person2#: Well, you are right. But sometimes she's too caring... well, no... she's just possessive... and... a kind of control, you know... I need some space for myself.
  #Person1#: Oh? Did you talk with her about it?
  #Person2#: I've tried, but it didn't work.
  #Person1#: Oh, so, when are you going to tell her?
  #Person2#: Maybe tonight. I don't know. I don't know how to tell her.
  #Person1#: I know she is head over heels in love with you. She'll be badly hurt!
  #Person2#: I know.