I just thought this was worth it

Gyro Zeppeli slowly realizes that he falls in love with Johnny's 'older' sister, Mia Joestar, during the Race , frequently Gyro, called her "Bella Donna"- which means beautiful women in italian.
On the other Hand, Diego Brando, the guy who won the race,and married to a 83 year old, is debating whether it is true that he had fallen in love with Mia.

And Johnny, well he feels like a third wheel when either
#1.Gyro and Mia are together and Johnny has happen to be there.
#2.Diego and Mia are together and Johnny has happen to be there.
#3.When both Gyro and Diego are together with Mia( Johnny feels like the 4th wheel in this one!)and Johnny happens to be there.

Who will it be?
Gyro or Diego?