Beloved Rabbi A Bride For One Night: Chapter Four
כי הא דרב רחומי הוה שכיח קמיה דרבא במחוזא הוה רגיל דהוה אתי לביתיה כל מעלי יומא דכיפורי יומא חד משכתיה שמעתא הוה מסכיא דביתהו השתא אתי השתא אתי לא אתא חלש דעתה אחית דמעתא מעינה הוה יתיב באיגרא אפחית איגרא מתותיה ונח נפשיה
This is as it is related about Rav Reḥumi, who would commonly study before Rava in Meḥoza: He was accustomed to come back to his home every year on the eve of Yom Kippur. One day he was particularly engrossed in the halakha he was studying, and so he remained in the study hall and did not go home. His wife was expecting him that day and continually said to herself: Now he is coming, now he is coming. But in the end, he did not come. She was distressed by this and a tear fell from her eye. At that exact moment, Rav Reḥumi was sitting on the roof. The roof collapsed under him and he died. This teaches how much one must be careful, as he was punished severely for causing anguish to his wife, even inadvertently.
Background
מתני׳ המדיר את אשתו מתשמיש המטה ב"ש אומרים שתי שבתות בית הלל אומרים שבת אחת התלמידים יוצאין לתלמוד תורה שלא ברשות שלשים יום הפועלים שבת אחת העונה האמורה בתורה הטיילין בכל יום הפועלים שתים בשבת החמרים אחת בשבת הגמלים אחת לשלשים יום הספנים אחת לששה חדשים דברי רבי אליעזר:

MISHNA: With regard to one who vows that his wife may not derive benefit from marital relations with him, Beit Shammai say: He may maintain this situation for up to two weeks, but beyond that he must divorce her and give her the payment for her marriage contract. Beit Hillel say: He must divorce her if it continues beyond one week. Apropos the husband’s obligation to his wife regarding marital relations, the Gemara mentions other aspects of this issue: Students may leave their homes and travel in order to learn Torah without their wives’ permission for up to thirty days, and laborers may leave their homes without their wives’ permission for up to one week. The set interval defining the frequency of a husband’s conjugal obligation to his wife stated in the Torah (see Exodus 21:10), unless the couple stipulated otherwise, varies according to the man’s occupation and proximity to his home: Men of leisure, who do not work, must engage in marital relations every day, laborers must do so twice a week, donkey drivers once a week, camel drivers once every thirty days, and sailors once every six months. This is the statement of Rabbi Eliezer.