this was so random, that I just had to share.... I was chatting on FB with my BM K's ex husband (they ended things on good terms and we're all still friends) and I noticed that he had friended my FI's SIL. So I asked him how he knew her, and turns out that she is his aunt! So FI and him are related by marriage (does that make FI his uncle? I'm terrible at family tree stuff), and if BM K and him were still together, her and I would've been related by marriage too. FI just said that he doesnt think he can talk to BM K anymore because she divorced his family member lol I always love hearing about random things like this that make the world feel so small...