Maja Nilsson made the comments in her podcast, Life in the Stands, as she reflected on how she and her fiance are settling in to life with United following his £31m summer switch from Benfica.
Corporate suites at United are available for between £24,000 and £82,000 a season and, despite Lindelof taking home £120,000 a week, Nilsson is resentful at the high price he has had to pay for her to enjoy a luxurious matchday experience.
"Players have the option to rent a box," she told listeners. "I'm not even going to tell you for how much, but a disgusting amount.
"If you don't buy one you're considered a loser. But having a box is wonderful. You get your own waiter."
Lindelof has yet to feature for United in the Premier League but has been used in the Champions League and EFL Cup.