Sis, I'm just going to say this: None of us are perfect... we are on the way to being more 'Christ-like' but we all have things that upset us - we are all learning how to deal with those things.
I've had a few sisters block me over the last two weeks - one I don't know why, I've mailed her twice with no reply so I left it with the Lord and put it down to ''we are all so different'' and family have disagreements...it usually comes together in the end, so try not to worry about it

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I don't usually get involved unless I'm asked, but b'c I've been thru it I thought I could help - we all have reasons for our behaviour, whether we think each other is right or not is something we have to deal with for our own sake.
We all know how you feel sis - and I'm sure some prayers will be going up for all
Give it over to the Lord and let Him work in the situation - don't allow it to steal your peace, b'c when it goes, everything goes

just something I've learnt recently

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hugs xx