Oh noo, imo they were just highlighting on how obsessed the ML’s grandfather was to his late wife. Almost to the point of… weird? He only trust the ML to be his successor bcz he had his late wife blood flowing in him. And turns out the MC also has ML’s late grandma blood in him being the grandchild of ML’s grandma and all. They’re distant relatives btw not rlly close cousins?? Like um.. not that weird tbh..just feels.. icky
(Idk sorry for my bad english)
Uh yes that’s what I said distant relatives as in cousins. that’s why it’s not that odd I was just replying to OP comment why they think it was unnecessary to put a fact that they were 2nd cousins. It was because the Mc has the same great-grandparents as ML further highlighting the details on how obsessed her grandfather-in-law was with his late wife. Finding even his own grandson bride-to-be that has his late wife blood flowing in them.

It was cute until they add in they were second cousins at the end like that’s so unnecessary it’s not a cute little “it’s fate!” thing, it’s weird