How did Bassanio react to the choice of the casket when he knew it was the right casket?

Bassanio was overjoyed.... his dream of marrying Portia was coming true.

Madam, you have bereft me of all words,
Only my blood speaks to you in my veins;
And there is such confusion in my powers,
As after some oration fairly spoke
By a beloved prince, there doth appear
Among the buzzing pleased multitude;
Where every something, being blent together,
Turns to a wild of nothing, save of joy,
Express’d and not express’d. But when this ring
Parts from this finger, then parts life from hence:
O, then be bold to say Bassanio’s dead!