פירוש על גיטין 8:2

This has to be read אדם with the text in Peah.

8. If the erasure was in the penultimate line and was the size of “affirmed and verified” or larger, the document would be invalid, even if the erasure was verified, because perhaps a party erased and replaced with a forgery and then verified in the space between the text and the witnesses. This is only true where there is no line-size space between the witnesses and the document in which case we are concerned that the party added something in the space the witnesses had left. If, however, there is a line-size space, the document is valid and we are not concerned that they had left two lines of space and the party added what he wanted in one line and left the other line-size space blank. This is only where the witnesses are established as knowledgeable. Otherwise, we would in fact be concerned.

One should not divorce his first wife unless he found something unseemly about her. hagah: Aside from this, the rabbis said: "if someone divorces his first wife, the alter cries tears upon him". This is specifically talking in their days (time of the talmud), when they frequently divorced a woman even against her will (this is when the alter cries). but if she consents it is permitted. You should try to not rush into divorcing your first wife, but the second wife, if you dislike her, you can divorce her.