I have 4.
1 - Father of my daughter - he's in Ireland, get on well with him.
2 - Father of my sons - waste of space, surprised he's still alive.
3 - He's up to the same. I speak to him if I see him in the pub. His mum and dad live next door but one so I can't avoid him really
4 - His brother is married to my aunt. Get on very well with him
My Ex Wife and I are still friends. She runs a small Hotel in Cornwall.
The present Mrs B and I checked in there latish one evening not knowing it was hers.
In the morning when checking out, Mrs B went ahead to the Desk to settle the bill while I was doing battle on the stairs with the cases. When I got to the Desk the two Mrs B's were chatting away quite happily about sharing a Surname. She was a bit surprised to find out they'd also shared a Husband, but not at the same time, I must say she took it very well ;o)
Since then she has stayed with us in Kent a few times and we have been back to her Hotel.
We all get along just fine, which is good.
I keep in touch with first husband, he was my first everything, met at school, married at 22, divorced at 24. We often reminisce by e-mail (he lives in Canterbury still), my 2nd husband is dead thank God. Anyone else (apart from current husband) were affairs so no.