so...we're going to ignore that weird brother thing? 😭

yes.

He's not from earth so I don't think he know how weird that is ╥﹏╥ let's ignore

He's an alien so this concept of family is different for him and won't make the same sense as human from Earth. I mean alien women don't even give birth and instead create their own children like a science experiment, and love isn't even a required/normal thing in his species so we rlly can't compare