@ You struggle to return her calls. It's too much of an effort.
@ You find yourself wanting to talk to someone else after a tough day/an interesting date/a fight with a colleague.
@ She's not one of the first people whose birthday you write down in your new diary.
@ You realise after a while that you haven't seen her new paint effect in her lounge. Less than a year ago, you would've been painting the walls with her.
@ She seem a little too fascinated by your new man, a little too uninterested in your new job.
@ Her new passion in life just doesn't excite you.
@ You find the fact that she gets jealous of your other attachments a little unnerving.
@ You disagree, quite harshly, about a money issue.
@ She needs too much attention, and you feel you're not getting enough.
@ She tells a mutual friend your darkest secret - and gets irritated when you confront her.