Sidlink Headcanon randon thoughts:
Sidon has had a crush on Link as a small child, and was absolutely devastated when he 'died'.(?) He spent 100 years thinking about Link dearly just like he did Mipha (Basically Canon)
He is thrilled to get to be an adult together with Link (Hylian are like dogs in that way toward the Zora, they age 7 times faster)
He is worried that the Hero is a baby that only lived 20ish years???? Even Mipha was like fifty or something. Baby is working so hard.
Sidon started liking Yona because she was a glutton as a child (hes into that obviously)
Btw I'll never be convinced that any race that can live hundreds of years is 100% monogamous, doesn't check out, pretty sus. Unless there is an evil dictator or something, but Dorephan looks chill. (Weird sex stuff is definetly happening under the domain. NO DOUBT)