An Experiment in Trust

I've been with my partner Alex for five years now, and we have a very strong bond. Lately though, I've been feeling a bit stagnant in our relationship, like maybe we're both too comfortable with the routine. So a few weeks ago, as part of an experimental phase in our kink exploration, I suggested something new: letting Alex choose what happens during our next date night without any input from me. It was exciting and terrifying all at once. When the moment came, my heart pounded as Alex led us into some territory that felt both foreign yet oddly familiar, it stretched my comfort zones but also made me feel alive again in ways I hadn't expected. I'm not sure if this is typical for long-term relationships to try such things or if I'm just being overly dramatic about it. Is it normal for a couple to shake up their dynamics by trying something radical like that, and would you have done the same? What do you think are healthy ways to keep passion alive in a relationship?