Whoever said "You've only been here a couple of months, but I think that you're a bit nieve"

"Nieve" is an archaic word meaning fist or hand. So if whoever said it, they may have meant that she's only been here for a short while but she sounds like a bit of an old hand. Well, actually what it translates to is she's only been here a short while, but she's a bit hand. If this is some weird combination of Scots and archaic English it may make sense. If whoever meant Sharon is a hand that is bitten, it's a bit weirdness.