Hello! I am trying to find a story set in New Moon. Starts off with Alice having a vision of her not being Jasper's true mate and she proceeds to tell Jasper this, but no one is right after Bella saves Edward in Italy. Bella goes to sleep and wakes up finding out she has travelled back in time to when Jasper was human and just before he was changed into a Vampire.
Japser and Bella meet but Bella rebukes his flirtatious behaviour as she believes that Alice and Jasper are still mates. Then Jasper goes off to fight in the war, and this is where Bella realises her true feelings for Jasper. When he comes home, she admits her feelings for him and they have sex. They get married in secret. A couple of days later he leaves to the border of somewhere and Bella realises at around this time Maria changes Jasper. To save him from being changed Bella grabs a horse and chases after him.
When she gets to the border she runs into his friends and tell them that they are married and that she needs to find where Jasper is. By the time she gets past the border she realises she's too late. She wakes up and goes back to the present. Jasper then remembers all of this happening.