I'm in my mid 40s and my sister is a couple of years older than me. We have never been very close either growing up or as adults. We live a few hours apart and keep in touch with a phonecall every two or three weeks. I find it difficult to have any sort of meaningful conversation with her, she is competitive with me about very silly things so I tend not to talk too much about what I'm doing. E.g I joined an activity and she constantly asked me how I was getting on and then told me she had joined a similar activity and was doing much better... I don't trust that whatever I say won't be repeated to people we know in common so I try to keep conversations pretty light and casual. This year I had to return to my hometown to attend a funeral and people in my hometown, that I hadn't seen for years, knew more about me than I was comfortable with them knowing as they are now effectively strangers to me. The only way they could have known was from her.
I don't know if she is particularly happy with her life as she' can be quite negative but if I ask her if she's ok, she usually retorts with 'I was thinking the same about you' so I've stopped asking. I speak about the weather, the kids, what I'm cooking for dinner. Really dull conversations but its fine. She doesn't tend to get offended, I don't hang up feeling stressed and it maintains the albeit superficial relationship, which I want to maintain as she is my only remaining family member.
Recently she has been getting very personal and I don't know how to react to it. She's asking about my financial situation but not in a concerned fashion, more in a gloating manner that she has more money. It sounds ridiculous when I'm writing it down but it is getting under my skin. I have children and she doesn't so obviously we have additional expenses. She 'jokingly' told me that I will be paying university fees while she basks in retirement. She aggressively asks in an otherwise light conversation about our financial affairs. It isn't concern as when I (quite obviously) don't answer and change the subject, she repeats the question and then tells me how she is planning her fourth holiday of the year.
It is making me so uncomfortable. I have asked myself if I am uncomfortable with this questioning as perhaps I am subconsciously envious of her but while I am envious of her holidays, I wouldn't swap her life with my own.
I need to know how to thwart off what I feel are intrusive questions. Help!