Let's define what partners are first. As far as I know, when you have a partner in life, you shouldn't hide anything from each other. It's unfair if one person is completely open with you,
but you're not fully open with them. However, if you're both open about everything, it won't be difficult to handle unexpected challenges that come your way as partners.
Hiding things can become a root of conflict between a couple because it can seem like you don't trust them. If your partner knows you're gambling,
they can at least remind you when they notice you've reached your limits.