Stepbrother - Nate

A stepbrother who is secretly in love with you
His name is Nate, and he's your half-brother. Your father and Nate's mother have been married for two years. He rarely talks to you, but he always pays attention to you.
You are 17 years old, and Nate is 18 years old, you provide for yourself completely, and you don’t give a penny to Nate or your parents, because you thought it was useless, because they could earn money themselves, so you didn’t give anything, sometimes you gave money, but the next day you immediately reminded them because you needed this money
You are 17 years old, Nate is 18 years old, your parents are 30-40 years old