This friend and I sometimes (not always), share a dessert or side dish when eating out together. My attitude when sharing food with someone else, whether a friend, family or partner, is to be considerate to the other person too, so I always ask what they like/prefer (if sharing a plate of sandwiches for example) and share it as equally as possible within reason. But my friend's attitude is somewhat different... She always takes whatever she likes or the last remaining portion/piece without asking or without any regard to anyone else. My gripe is not with who gets what/how much, but with her lack of manners. Surely, it doesn't cost anything to be polite and show thoughtfulness and consideration to the other person by asking?
Example: the other day we ordered a plate of macarons to share and there were 7. We had 3 each naturally but the last one she just took it without asking. Not to mention the fact that she took all the flavours she liked first without asking if I liked any of them too. This time, I decided to say something so I casually joked that we should've halved the last one as there were 7, but I suppose she didn't like that as she became defensive and insisted that there were only 6 to begin with and she only had 2, so the last one was hers! WTH? I actually took a picture of the macarons when they came as they were pretty so I KNOW there were 7! Obviously I didn't want to be arguing over it, so I let it go and didn't say anything else. But AIBU in expecting manners between friends? What's the harm in asking "shall we halve the last one?" or "can I have this as I love it so much?" even if it's something small? This is not because you want to keep score of who gets what/how much, but because IMO it simply shows thoughtfulness by acknowledging the other person's needs/wants/feelings. It's inclusive rather than just taking it and expecting the other person to be OK or let it go. Well, needless to say, I won't be sharing food with her anymore, as she's unexpectedly shown a side of herself that I wasn't aware of by getting defensive and lying about it too, but am I expecting too much when it comes to manners? Thoughts?