Reply To: Chidushim on Daf Yomi

We break a glass at a wedding to remember the charben. So we also say a brocho to remember it.
The Likutei Marich explains the difference between a wedding and engagement. At the engagement, we break a plate, whereas at the wedding we break a glass. Why? The engagement cannot be undone, so we break a plate, a klei cheres which cannot be taveled in a mikveh whereas a wedding can be undone so a glass is broken which is considered like metal.
I have a different reason for breaking a plate. Rashi on the pasuk
לבני הפלגשם says first that a yud is missing and then he says that a pilegesh has no kesuva. What is the connection? The GRA explains that the shem is in the union, the husband איש has a yud, the wife אשה has the heh and כתובה has the extra vav heh. A pilegesh has no kesuva, so the shem is halfed פלג שם. When they lein the kasuva at wedding it gives the impression that the shem is full and the redemption came, so we break a glass to indicate that it is not true.