So this is just a small petty issue in my (17f) house and im kinda done with it, because everytime i pour myself something to drink or grab a soda my mom will drink some of it. I dont mind if she asks me first but she drinks about half my glass everytime i have something. I then tell her to grab her own and she replies "its just a sip". Now my dad is mad at me saying i have to buy all of my beverages myself because my mom i told my mom to stop drinking my drinks.

Edit: my dad isnt serious about that statement but says that sort of stuff "to make me think about what i said". Im a broke college student and they fund basically everything for me so im not ungratefull of them, they just have to get their own drinks imo.