<human>: Dear Reddit- 
Another fucked up family situation I need advice with. I am 22 years old and living at home again with my parents (in their early 50s) and my 20 year old brother. I am very grateful that my parents are letting me live with them again as I finish college, and try to be as unobtrusive as possible, helping occasionally to make dinners and staying out of the way. My Mom treats me like dirt. Every time I talk to her or try to be nice and hang out with her, she shuts me down pretty rudely. She's pretty embittered towards me I guess, because even though I feel like I am making the efforts to try and have a happy relationship, I get the feeling she is not interested. It's kind of crappy to be rejected by your own mother in quasi-adulthood. 

What makes it harder to understand is my younger brother also lives in the house, and while he treats my mom very badly (super spoiled, demanding, rude, demeaning) they have a seemingly solid relationship. Its very obvious that she cares about him and makes a lot of effort to be a part of his life and make him feel loved and cared for. 

My birthday is coming up next week, and today my Mom refused to plan some kind of celebration.

I mean, I guess I should just get a better job and GTFO, but it's eating at me..... Why? What am I doing wrong reddit? I always wanted that we would be close. How does someone get rejected my their own Mom?

Can you summarize the given text in a few sentences?
<bot>: My mother is emotionally detached and suppressive to me, while being very maternal to my (slightly) younger brother.