Advice needed, dom wants to 'formulise relationship'

Hi there, I live an hour away from my dom. I live with my spouse (not romantic but still best friends) and a 12 years old child. My spouse and I make space for the endeavours of the other partner and the child is doing well and we're having check in on a regular basis.

I'm also in a rather wonderful d/s dynamic / romantic relationship with a wonderful man since 10 months. He expressed since quite some time sadness when I leave and he unties our agreed form of collar.

He expressed the wish to 'formulise' our dynamic but also regret as he feels that it wouldn't be possible due to the living situation.

I personally love the wee rituals we do and most of them grew just from a behaviour and we stuck with that. He barely asked for anything so far.

I've offered him that he could think about what he would like to have and that I'd take a week to think about them and then discuss again. That worked with some other items well.

The last relationship I had ended with a similar kind of negotiation of structuring a poly relationship as the domme of my ex harassed me for months and even while I was recovering from a surgery. That relationship had a lot of coercive control and the fallout is still noticeable within the scene. My dom is aware of thale fallout.

I'd like to ask if you guys would have advice and suggestions. I like the ritual and protocol parts the most. It links into me being a doll or a little in submissive play. I feel that rituals could benefit the wants of both I just want to make sure to be able to juggle family, own household, work and my own well-being