I've been corresponding with someone who, according to our research shares the same 2nd Gt Grandmother as me. This would ordinarily mean 3rd cousins, but there are two different 2nd Gt Grandfathers, so from a DNA perspective that would show us as 4th Cousins. However she has recently taken the Ancestry DNA test, which has shown us to be 5th-8th Cousins.
Could anyone advise me as to what this might mean?
Cheers
Dave