Provide the theme summaries for the following conversation: 

#Person1#: Hey, Lily, what are you doing?
#Person2#: Waiting for someone.
#Person1#: You mean the boy you met on MSN?
#Person2#: You're right. He is so funny and I think I'm in love with him.
#Person1#: You must be joking. You can't fall in love with someone you've never met!
#Person2#: I know, but I keep thinking of him every day. And I get really depressed when he's not online.
#Person1#: I think it's just a crush. You can't be serious.
#Person2#: Well, this might be silly. But I just can't get him off my mind. And I can't help missing him.
#Person1#: Did you tell him?
#Person2#: Yes. He said I'm his dream girl.
#Person1#: You shouldn't take it too seriously. It might be a lie.
#Person2#: I know. I can't tell whether he's serious or not so I need your advice.
#Person1#: I think you should enlarge your circle of real life friends, and then the right person will come along.

Summary: 
Lily falls in love with the boy she met on the internet, but #Person1# advises her not to take it too seriously and to make more real-life friends.