She did not. If you analyze Jesus’s treatment of his apostles with regard to Jewish customs of the time, he treated them as an equivalent part of his family as blood relatives. The giving of Mary to John as his mother is not an act of marriage as a brother would take the wife of the deceased and raise up children, but rather entrusting the widowed mother’s care to the next of kin who does not already have others to care for. The other apostles most likely already had families or elderly parents/relatives for whom they were responsible for. John’s brother James was older and thus was expected to take care of their own biological mother when the time came. John, as the younger of the two, would fall under no such responsibilities and was thus available to take care of Mary.