Nowadays news stories of female school teachers hooking up with younger male students almost commonplace; but the suppressed episode in which Eddie Haskell becomes Mrs. Rayburn's lover was just too hot for its era.
You must be more familar with female school teachers hooking up with young men then I am, and plus wouldn't that be a big risk to take as to what happens if the school or school district finds out, I bet that they could easily get fired from their jobs, and even say if they are married, or seeing a guy more closer to their age, and they find out what has been going on.