go (或turn) sour

become less pleasant or attractive; turn out badly

變得不愉快；失去吸引力；變得不受歡迎

the vision of bedsit freedom soon turned sour.

這種把臥室和起居室并為一體可以自由自在的想法很快就變得不受歡迎了。

sour grapes

used to refer to an attitude in which someone disparages or affects to despise something because they cannot have it themselves

酸葡萄心理（因?yàn)樽约旱貌坏骄驮g毀或蔑視某物）