The context of the following conversation is Addison had taken Casey's money without her permission. Addison knew she may get in trouble for this.:
Addison says I took some of Casey's money..
The friend responds Why the heck did you do that?.
Addison responds I just needed a couple bucks for the movie.  I'm going to return it..
The friend responds Why didn't you just ask him or me?.
Addison responds Well, you're broke too, and Casey's asleep, and now I'm afraid they'll notice the money missing and I'll get in trouble..
The friend responds I'm not that broke.  Slip the money back and I'll pay for the movies..