is an only child. He begins his Jedi
training at a late age, when he has already developed an attachment to his mother.
He begins his fall to the Dark Side when he falls in love with and decides to pursue a relationship with Amidala: the onetime Queen of Naboo turned Senator.
This is expressly forbidden by the Jedi Code.
He shows strong signes of a rampant ego, expressed in anger at Obi-Wan Kenobi for "keeping him back". He is pushed and molded by Supreme Chancelor Palapatine ("Trust your feelings, then you will be invincible"), assumably without Obi-Wan´s knowledge.
He pays a heavy price for his pride during the opening salvo of the Clone Wars. During his lightsaber confrontation with Count Dooku/Darth Tyranus he loses his arm.
Afterwards armed with a new bionic arm he marries Padme on Naboo, an offense worthy of expulsion from the jedi order.