@Bozza IMO you might be getting to confrontational (especially) over the phone.

Any sort of confrontation should be done face to face.

She is brave maybe sitting with some frenemies and shooting stupid shit on loudspeaker.

Sure you might be caught by surprise but then you can go back anyway.

'Hey again who's calling?!'

'Ah its youuuuu. What sex ,last time Ive seen you you have been playing with a doll'

Pregnancy joke. That is too much. But dumping her on the spot, maybe not.

find out what (who) was behind. Where she was with who. Info for your benefit. Next time you will have anecdote you should be freely sharing with next chick.

'In had this friend and she joked about being preggy, coz Karen thought its funny and she convinced her to do it. Well it wasn't funny, and Karen new she will be in trouble, and she was coz she is not my friend anymore. Karen ofc didn't mention to her she belongs to HPV Obese FEMINISTS anonymous and want her to be alone' .

What more. You don't need any conformation on her part - you can make this stories up on the spot, because they are real anyway and serve as teaching anecdotes to women.

Didn't someone tell you few weeks back" if you are loosing shit too often too early " you need a break?