热情似火冷淡如冰
[rè qíng sì huŏ lĕng dàn rú bīng]
'热情似火冷淡如冰' means 'Passionate like Fire, Cold as Ice', representing the contrasting traits within one person—intensely enthusiastic at times and completely apathetic or detached at others. This indicates someone who can shift their emotions from warm and inviting to cold and distant very swiftly.