In Igros Moshe Even HaEzer 4:113 Rav Moshe Feinstein responded to a question that concerned a husband who, unbeknownst to his wife at the time they married, turned out to be engulfed in homosexual behavior. Could the marriage be annulled due to mekach ta'us (a purchase made under false pretenses), or would the wife require a get (writ of divorce) as is standard? After a Talmudic analysis, Rav Moshe writes as follows (see here for original Hebrew): “Regarding the matter at hand, since we find that a great blemish is in essence a mekach ta'us even regarding a woman [who...
