sour on
Upper Intermediate (B2)informal
To start feeling bad about or disappointed in something you used to like.
"Many voters have soured on the administration after a series of broken promises."
Hear it in context

How Much Failure is Too Much Failure?
Razbuten · 20:12
have started to sour on it.

Hour 2: Scott Dochterman of The Athletic
ESPN College Football · 0:55
people are going a little bit sour on.

The Biggest Rebellion Against the British Empire in History
Kings and Generals · 2:26
those indigenous soldiers had begun to sour on their paymasters.

I made the HSR voice actors rank EVERY character FT. Robin, Cyrene, and Yaoguang's VAs
Mina Aoyama Ch · 73:36
but I just I think I'm I feel sour on her because

Spartan Chatter: Empty Throne
HALO · 56:18
Maybe they maybe they're a little bit more sour on the UNSC.