The thing is, there are legal rights that come with marriage that can’t be replicated - I arrived my first husband because we were born on different continents and it was the only way we could live together - otherwise we would’ve just co habited. We were seperated for 4 years before I actually filed for divorce under 2 years separation and him agreeing.
I married my second husband because we were having a baby and it gave him automatic parental responsibility, as well as next of kin status - I have no blood family. Again we divorced under 2 years separation and his agreement. We actually live only 5 doors apart and he’s one of my best friends. We just aren’t a compatible couple and our baggage doesn’t fit (he’s scared of abandonment, I’m scared of being tied down. We learned this through relationship counselling).
I only bothered to actually divorce him to marry husband number 3, who is the love of my life. We’re getting on a bit and have a blended family so needed both the next of kin stuff and legal covenants to do with property & inheritance tax etc.
I have them listed in my phone as Hn1, Hn2 and Hn3. They all get along well and I get along with their current partners. Hn2 will be remarrying next year and Hn3 and I will be guests.
Hn3 and I actually recycled witnesses from our first weddings, because friendship often outlasts marriage!