My sister and I have always had a fractious relationship but this has grown in intensity over the past few years. We have had some tense email exchange over the past couple of weeks and as she often does when she is not 'winning' an argument (it becomes that as she can't really do amicable discussion) she starts to personally insult me (e.g. you're mean, selfish, you're moaning, you're flauting). I find the drama and her insults all too much and recently I've started to think that she can't (/won't?) change and perhaps I need to accept that there can be no reasonable relationship with someone who feels that it's her right to treat others badly when they don't comply. I am not approaching this lightly, but am thinking that it might be best for my wellbeing to cut her out of my life. She lives abroad BTW so we only see each other a few times every decade and never with my parents there (due to where they live) so minimal impact on others. Has anyone been through anything like this? Do you have any advice?