Shimmers,
It's up to individual actually.
We hv given enough "face" for them to cover their own shit but if it's still repeating, it's not healthy tho. Yes, friendship do occur times to times. Hilang 1 kawan, you ada kita-kita...*winks*
To me, I don't feel guilty or regret not having her as a fren tho we were labelled as mata $$$ cos orng yg dah pernah kena akan tahu rasa pahitnya.
Hope your prob will be solved soon. *hugs*