It might just be a generational thing. She's an older woman, a grandmother, who has been out of work for quite a while now. I've had older coworkers before (although never with an age difference of quite this size before) and got along with them just fine. She's very chatty, which I think might be part of the problem. When I've had her in for training, she does not. stop. talking. She even interrupts me in the middle of explaining something to go off on a tangent. But these little asides usually aren't relevant - stories about her children on the East Coast, her roommate, her garden - and I'm frankly not interested in what has been recently planted in your garden when I'm trying to explain how parking passes work.
But I feel a little bad, because she's clearly been living a fairly isolated life because her home is out in the boonies and she doesn't get to socialize much, especially since she's been out of work. I understand why she wants to chatter the day away - it just drives me crazy in the process!
Luckily, we don't work together too often (almost never, in fact, since our jobs are basically opposite shifts) and if she wants to chat with the residents, they'll no doubt be delighted to have someone to talk to. She's only a temp we borrowed through an agency, so we might not end up keeping her anyway.