text: Lisa: how have you been?
  Lisa: i haven't heard from you in a while
  Jack: fine
  Lisa: you sure?
  Lisa: you're never this quiet
  Jack: i've just been busy with school, friends, family...
  Jack: you know, all that stuff :-/
  Lisa: well, if you need anything i'm here for you
  Jack: thanks
target: Lisa hasn't heard from Jack in a while, which is unusual for him. Jack's been busy.