Am I bad guy for congratulate one twin individually?

So there were wrestling tournament in our school, winner of the each weight has a chance to train in biggest wrestling team. So twin brothers were in 92 kg finals. The twin im more close to won and i just congratulate him posting β€˜β€™the winner πŸ†β€™β€™ on insta post showing pic of me and him. But another friend of mine said its wrong to do this and i should have congratulate both but for me its weird he is the one winner and have a change to go there so am i wrong? Sorry for bad English its not my native language

Am I bad guy for congratulate one twin individually?
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