Secrets at Home

Work from home, been doing it for years now. My partner's cool with me working solo, but there's this thing she doesn't know about, I've been sneaking out to a sex club once a month since we moved in together. It started as a way to relieve stress and keep my kink alive, but lately, it feels more like a second life than just an escape. Tonight was the last time I plan on going solo; it's becoming too much of a burden hiding this from her. Plus, the sex at home with her is getting better every day, so there’s no need for me to go elsewhere anymore. But still, wondering if she'd ever understand why I needed this outlet and how it made us both stronger? Anyone else have similar stories or advice?