James's best friend Sirius Black later commented that James could not resist showing off and making a fool of himself whenever she was around. While she did not approve of his bullying, she did admire how James stood up for his friends and other people who were cruelly treated by Snape's aspiring-Death Eater friends.
During their seventh year, James matured somewhat, proving himself to be responsible and brave.
Originally, Petunia and Lily were quite close, but her magical abilities and her friendship with Severus caused problems between the sisters.
Envying her sister's abilities Petunia wrote to Dumbledore, asking if she could attend Hogwarts with Lily. None of my friends can understand why I even talk to you.
However, it is implied that James still had the desire to bully Snape, but was willing to stop actually doing it for the sake of Lily.
This led to her agreeing to go out with him; and Lily's attraction to him grew into genuine affection and eventually love.
She appeared along with James (her husband), Sirius Black, and Remus Lupin.
After the end of the Second Wizarding War Lily had three grandchildren through her son: James Sirius Potter, Albus Severus Potter, and Lily Luna Potter, the last of whom was named in memory of her. At the age of nine, Lily became friends with Severus Snape, who lived down in Spinner's End, which was within walking distance of the Evans' house.
This led to a parting of ways between Lily and Snape, as the former had already become dismayed by Snape's fascination with the Dark Arts, and his friendship with his Slytherin house-mates Mulciber and Avery, both of whom were aspiring Death Eaters.She and James were betrayed by Pettigrew, and thus both were murdered by Voldemort on Hallowe'en night in 1981, while trying to protect their son.Lily briefly appeared again through the Resurrection Stone in May 1998.The couple, along with their friends Sirius Black, Remus Lupin, and Peter Pettigrew joined the Order of the Phoenix during the First Wizarding War; she and her husband defied Lord Voldemort himself three times.However, Lily and James were forced to go into hiding after a prophecy was made concerning Lord Voldemort and their infant son.