I used to know this woman in my old town who was a bit strange in some ways. She's intelligent and funny but could be really sneaky and two faced. We sort of drifted apart naturally and I tended to avoid meeting up etc..We don't live there now so haven't had to see her and didn't keep her on FB. She took the hint.
Her dd is the same age as ds2 and he added her to FB. Not much of a problem I'd have thought except the mother is now named on her dd's FB page and she's been messaging my ds2. Pretending to be dd and saying can we come over to your house (which is some drive away) Saying her mum said it's ok. I just know from the way it's worded that it's from the mum. The dd uses text speak for starters and I can tell it's not how a teen would go on. They're 13.
I've deleted the dd now which is sad but ds2 isn't at all bothered. He was surprised she'd added him tbh 
I like FB but it can be such a bloody pain sometimes.