Well myself is also confuse as you are, because back then in Africa during the time of our fathers genotype didn't really matter when it comes to marriage which I really admire back then, but now genotype is really necessary to know before marriage, and when you eventually fall in love with someone without knowing each others genotypes and later discovered that you two genotypes didn't match to get married to each other the relationship has to end without giving it a second thought since it is already obvious that you two can't go together due to  your genotypes didn't match.