Your cousin's wife is not related to you, so her cousins is not related to you unless she has some family connection to you besides being the wife of your cousin.
The wife of your first cousin is not related to you.
second cousin
Your second cousins.
My Boyfriend and my cuusin
Your grandmother is first cousins with cousin. Your parent would be the second cousin of the cousin's son. That would make you second cousins once removed.
Your second cousin's siblings are also your second cousins. The children of your second cousins are your second cousins, once removed.
Your grandmother is first cousins with cousin. Your parent would be the second cousin of the cousin's son. That would make you second cousins once removed.
Your children and your first cousin's children are second cousins. Your children and your second cousin's children are third cousins. And so forth.
I think they are you cousins once removed
First cousin once removed.
Cousin once removed.
You and your first cousin's grandson are first cousins, twice removed, to each other.