Mark is unhappy because of______.

W: Hi, Mark. How are you?
M: Actually, I’m really fed up, Linda. It’s Jane.
W: Jane? Who’s Jane?
M: No, nobody really. Just the most astoundingly attractive girl in my year of school.
W: Oh, is that all? So, what’s the problem?
M: Well, the thing is I just don’t know how to make her notice me or...
W: Wait a minute. I’ve got a brilliant idea. Why don’t you try talking to her?
M: But I wouldn’t know what to say. I...
W: Look, she is in your chemistry class, isn’t she? You are good at chemistry. You could offer to help her with her chemistry homework. How about that?
M: Not that. Just one problem.
W: What?
M: She’s better than me at the chemistry.
W: OK, then, well, there’s that party at John’s on Friday night. You could invite her.
M: Just another small problem. John’s her boyfriend.