Name change as outing (family use this site)
So backstory, me (40) and my sister (42) have a younger half sister (30) from our Dads side. She’s been struggling with infertility for years and our Dad is paying for her to have IVF. Older sister is very angry, unhappy, bitter over this. I’ve been avoiding her for months because it’s all she talks about. I don’t understand what her problem is.
I have one child (5), my older sister has three children (9, 5, 4) we have both been blessed to have gotten pregnant easily and I feel awful for our younger sister and want her to have a chance of being a parent aswell.
Anyway older sister decided a year ago she wants a fourth, and after a year of trying it hasn’t happened. I feel bad for her but she already has three so she’s not in the desperate situation our younger sister is.
Older sister phoned me today, kept going on and on and on about how unfair it is our sister is getting free IVF, that she’s also going through infertility and that no one cares about her. I said “people do care but you aren’t in the same situation as our sister, you have three kids! And most people can’t get pregnant into their forties, it’s completely normal” she went absolutely ballistic at me, hung up, sent me ten abusive texts in a row I cba to read.
Maybe I should have worded things more tactfully but she’s irritating me a lot with treatment of our younger sister, she’s going behind our backs to our Dad nagging him over this in the hopes he won’t pay for it. She’s trying to sabotage her having a baby. I’m just sad about the whole thing. Maybe I’m in the wrong. AIBU?