"Due to Wolverine traveling back in time to January 1973, and preventing Bolivar Trask from being assassinated by Mystique, and changing the significant events after that point, she never became affiliated with Stryker, her sister, Emma, was never taken as his prisoner, and she didn't die during the events on Three Mile Island. And, consequentially, she and Logan never met and fell in love."
Where was this stated? Because the Logan is known as The Wolverine in the future as shown by Logan. Which is a name he got from Silver Fox.
And he also volunteered for Weapon X as implied by him having the same dog tags he got from Stryker in Logan. And confirmed in a deleted scene.