 The fact that “bachelor” means man who has never been married makes it the case that that bachelors are necessarily unmarried. A married bachelor is an impossibility, a contradiction in terms. A man who in fact lived his life a bachelor could have (instead) married, but if he had, his bachelor status would have immediately ceased. But this is a possible scenario in which one who, actually a bachelor, got married instead, rather than a scenario containing a married bachelor.