Board Thread:Theories/@comment-27441457-20151225042055/@comment-27702860-20160604050240

Sorry ^^. . . waifu--ワイフ--is the term for "wife" sort of picked up by Japanese. Over time, it has become a way for anime fans to refer to female characters they want as their imaginary lover/girlfriend/wife. I figured the author was playing on this when Crista would appear even in the manga as some goddess-like figure and various characters would think, "marry me, already!" Obviously, she is a deeper character than that! This joke is certainly played up in the satirical Attack High School spin-off to the point that whenever Ymir thwarts Jean's interest in Crista she hugs her tightly and sticks her tongue out at Jean while Crista seems blissfully unaware of what is happening.

--J.D.