43 [M4F] UK long-term monogamous relationship but part time?

I have made a couple of posts in the past, I'm still that person except I don't want to give up my independence. I think a relationship between two independent people would be healthier and more long lasting than a traditional interdependent relationship.

In short:

Yes to:

• hopefully long-term
• monogamy
• autonomy
• travel
• events
• just being in each other's company
• helping each other

No to:

• living together (staying over is ok though)
• marriage
• shared assets
• children (obviously)