Is you and your partners social circles similar?

Yes, 99% are family.

I still see some of my husbands friends in the pub but I don't go out with any of them anymore as they are all couples.

We largely overlap, but we each have our own friends as well.

No he has friends I don’t

In past tense as I´ve lost her

No.
Her´s besides a very close group of female cousins, was composed by people of the medical and psicology fields.
Also an enthusiastic "club of fans" of ex little patients and their families.

we are both recluses so we are out of the circles out there ☺

But we’re working together as in there’s a reason why he’s befriending me not intentionally but it’s our job and he’s helping me

Yep