Withholding anything from your partner, is a sign of an unhealthy relationship.

I’ve seen the strategies you describe play out from both roles. It’s not pleasant. The partners are stuck in a game they’re trying to win rather than focusing on the partnership. And everybody suffers

In my personal life I’ve come to the decision, from experience, that if I’m in a relationship with a partner who starts to withhold from the relationship. The relationship is over and I need to move on. It’s been great for my mental health. I highly recommend it