So I (18f) have just come back from university for the Easter holidays. My mum has been saying how excited she is for me to be coming back everytime we facetimed, but as soon as I'm back it's like I disappear. We went out shopping today with my brother (14m) and she has been buying him so many new things; a new game for his nintendo switch, a dvd boxset of HOUSE (on prime video) and a pair of drumsticks for a drumkit that he neither owns nor knows how to play. I understand that she is buying these things for him because he doesn't have his own income but I was out with them and asked for a new switch game (promising to pay her back when my student loan come in) and she said it was "too expensive" but proceeded to spend about £35-40 on my brother. I also went food shopping with her yesterday and, as my birthday is coming up, I asked if I could have a small cake (there's only 4 of us in my direct family so I didn't need a big one) and she again said it was "too expensive" and that if I wanted it I had to buy it myself. So I did, because I'd like to celebrate it. She also complained about having to buy me deodorant despite me telling her that I didn't have one here and that I didn't bring one from my university accommodation. She wants me to pay her back for that when I get my student loan. It was £3. AITAH??