Does a husband's acts of fondling, kissing, and embracing his wife during a Ramadan day—without intercourse—affect the validity of their fast, given that they were unaware of its prohibition at the time?

The madhhab (view) of the majority of scholars is that a husband touching his wife directly, kissing her, or embracing her does not invalidate the fast if semen is not discharged. There is no need for a make-up fast for an ignorant person who did something that necessitates breaking the fast. Based on this, the questioners are not required to make up the fasts as long as they acted out of ignorance, though making up the fast is more cautious in the event of semen discharge.