Was I mean or sister ungrateful?

[ilovebabytv]

DSis asked me for a lift to the MU (which is in another town) to get a scan. She is 6 weeks in pregnancy and was having pains so went to gp who got her a same day appt for a scan. She asked me at 1.00pm and the appt was at 2.30 so was very last minute. I was working in the morning and come home at 12.45 so was just sitting down to lunch when she called and I said yes and she asked for me to get her at half one. However had to get dc2 ready (he was having his usual nap when i came in from work so that was disrupted and had to organise a liquid lunch for him which he could drink out of a bottle in the car) so was running a bit late in picking her up. She was not happy with this. Got her to the hospital in time (just) but I wasn't sure if she would be 2 mins or 2 hours (depends if the MU is busy or not - I was pg 2 years ago and was in and out due to bleeding so know how it works) but as she had her dp with her I said I would nip into town to get some shopping and she could phone me when she was finished. Getting into the town centre took ages due to bloody roadworks and was just in the shop door when she called to say she was ready. I told her i was just in the shop door and would get what i needed and then come collect her. Unfortunately by the time I got what I needed and back through the road works dsis and her dp had been waiting over an hour. But there is a cafe where she could have had a cuppy or read a magazine and seating in the hospital so not like she was waiting out in the cold. The result that she was very aggressive towards me on the drive home. Not directly mentioning she was angry about having to wait but basically any discussion topic brought up resulted in her disagreeing with me v. aggressively and practically screaming at me. Spoke to DM later who told me that Dsis had called her to rant about having to wait an hour at the hospital. AIBU on having my dsis wait for an hour or (as I think) should she just be bloody grateful that I dropped everything to take her through, otherwise she would not have got at all. Sorry tis a long, not particularly exciting, ramble.

She sounds awful. This won't be the end of it either. She sounds like a bit of a piss taker tbh. Just think of all the baby-sitting, running to appointments, clothing for the baby, used equipment you'll be expected to provide too. How willing will you be when your sister treats you so shabbily? Maybe its time to have a good chat and one off opportunity to air some grievances. Things are set to get worse if you let them.

Only you know OP whether she would've behaved this way if it was a routine appt rather than a waiting to see if your baby is alive thing.
Everyone deals with pain in different ways, for some it comes out as anger. The implication that my scan came second to your shopping would probably have upset me, if you were my sister.