Time was a constant theme in Wanda and Vision’s relationship in Avenger Infinity War.
All they wanted time. Time to stay together. Just a bit longer. Miss one train. Miss the next. Stayed in bed.
In the beginning, Natasha was scolding Wanda about not being reckless and always checking and what did Wanda say? ‘We just wanted time.’
Vision begged Wanda to destroy the stone while it was still in his head and he said ‘We are out of time.’
Thanos got the Mind Stone in the end, and how did he do it? The Time Stonex turning back time to when the Stone was still intact and gouged it out of Vision.
Time was never on Wanda and Vision’s side, and all they wanted was time.