I Told My Friend Group I Won't Split the Bill Evenly Anymore

Every time my friend group goes out (6 people), someone suggests splitting the bill evenly. I'm on a budget and I order accordingly — a main and water. Meanwhile, others order apps, cocktails, steaks, and desserts. Last dinner, my share came to $85 when I ate $28 worth of food. I brought it up and said I'd like to just pay for my own from now on. My friend Leah said it "kills the vibe" to be nickel-and-diming at dinner and that it makes everyone uncomfortable. I said what makes ME uncomfortable is paying double for food I didn't eat. Leah said if money is tight I should just order more. The logic is baffling. Two friends agree with me in private but won't rock the boat. I'm not being cheap, I'm being broke.