And why all this? (i.e., Why this separation from cohabitation?) So that the Jewish daughter (i.e., his first wife) rejoice, and this one weep; this one, adorn herself, and this one abase herself.
"and after, you shall come to her": But if he does not do all of the foregoing and he cohabits with her, this is a cohabitation of harlotry.
"and you shall cohabit with her": You have only the mitzvah of cohabitation with her.
"and she shall be to you as a wife": as it is written (Shemoth 21:10) "her food, her clothing, and her (conjugal) time he shall not diminish."