Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: Well, backstory time. Since christmas is coming soon I wanted to make mother happy and buy her something she always wanted. What she wanted is probably not so important, the important thing is that it is very expensive. In fact its too expensive for me to buy it all myself (Im still a young teen), so I asked my brother if he would want to buy it together and that it would be a gift from the both of us (my brother is an adult, late twenties). I would pay half and he would pay half too, obviously.   
When I first mentioned it he seemed to be happy that he doesnt have to think up anything and agreed. Today I mentioned it again so we can go buy it asap. He got very angry at me and said its too expensive. I will probably sound assholish here, but he has a stable well paying job and lives with grandmother (rent free, doesnt have to buy food), I dont know his financial situation but he always seems to spend money on pointless things like enormous tattoos or new vapes.  I got mad at him for not wanting to spend money on a thing that would make our mom overjoyed. She always buys stuff for him, even if its not a special occassion (like consoles whenever there is a newer model). He started attacking me that I can save up nicely when mom buys things for me, because I got new shoes recently (the old ones fell apart, I didnt have money on them myself so mother helped me buy them) and he also started attacking my mental illness, saying that I dont have to spend anything when I dont go out in the first place.   
The last thing made me teary eyed so I ran into my room. I realize I shouldnt have gotten mad at him in the first place when he said he doesnt have money for it, but it just made me worked up.   
He texted me that he decided to get mom some soap and a candle. That made me even sadder now though.   
So yeah Id appreciate every response, I would be happy to receive advice on if should I apologize to him or not. 

getting mad over this