Is the fear of falling into disbelief by abandoning prayer, coupled with the wish that this not happen until marriage is complete, and the expectation of a grace period for repentance, and the concern that obsessive whispers might lead to delaying or abandoning prayer, all while believing in the disbelief of one who abandons prayer, considered a hesitation concerning future disbelief?

A person afflicted by waswas (definition) (obsessive whispering/doubts) is not held accountable for their hesitation or actions resulting from the waswas, even if it leads to delaying the prayer, as they are not considered to have abandoned it. Consequently, there is nothing that necessitates kufr (disbelief) or affects the marriage. One must completely turn away from thinking about this matter and occupy oneself with seeking knowledge and sitting with scholars.