Cardcaptor Sakura Season 1 Episode 64

Sakura's class goes on a field trip to the mountains for skiing lessons. At the lodge, Syaoran admits to Sakura that the person he cares for most is not Yukito, and that his attraction to him was actually his reaction to Yue's power; however, he still can't bring himself to tell Sakura that she is the one he's in love with.