Will a woman be with her husband in Paradise, and will they have the choice to remain together?

Yes, a woman will be with her husband and offspring in Paradise if they are among the people of Islam, based on the Almighty's saying: ﴿And those who believed and whose descendants followed them in faith – We will join them with their descendants﴾, and the angels' saying: ﴿Our Lord, and admit them to gardens of perpetual residence which You have promised them and whoever was righteous among their fathers, their spouses, and their offspring.﴾ In Paradise, Allah will gather them together to comfort their eyes, and it is not to be thought that the people of Paradise would choose separation. If a woman did not marry in this world, Allah will marry her to someone who will comfort her eyes in Paradise, for bliss encompasses both males and females, and there is no celibate in Paradise.