I can also understand that you use frequency of use as a basis for decision-making. That's certainly one reasonable criterion. In this respect, your account of the Ionica makes sense. Clearly the case for letting it go finally outweighed the case to keep it.
On a personal note, I wear my watches sparingly, so rotation means nothing to me. Satisfaction comes more from my collection as a whole. I aim for balance and variety aligned to my interests and tastes, like it's a body of work. That's meant some culling over the last 6-12 months. I'm down by ten watches to a solid 30 now, and have used the opportunity to fill a few gaps too.
Good luck with whatever, if anything, comes next. Sometimes it's good to pause and reflect too.