An excerpt in a book reads 'if you hate to study, you might have a marital problem in future' because those red flags you see in relationship had been hoisted some time a go before marriage.
The study it means is not about reading books, No no no no. But about several things like:
Money management, Anger management, Believe and Faith, Fate, Cleanliness, Blood compatibilty, Friends , lustfulness, Food and drink discipline, Goals compatibility, Turn on, Turn off, Strengths and weaknesses, and the list goes on.
Don't hesitate to study, keep studying.