After he is born, there is no reason that she can live out her life. I'd rather not go off into questions of marriage too quickly, since it is far beyond what the article is about The Protoevangelium of James. And speaking of motivating factors, what would motivate a man to consent to a marriage where his future bride had made such a vow unless you ascribe to the "Joseph was an elderly widower who may not have been concerned with sexual matters at that stage of his life" school of thought. The translation of "until" is better translated as "up to that point" because it only speaks to the state of things described.
Thank you for such a well written article, and for your wonderful answers to those who thought otherwise.
The Alleged Perpetual Virginity of Mary
The term"came together" from sunerchomai includes the idea of sexual intimacy cf. Augustine through the ages: Since I do not know man. International Standard Bible Encyclopedia. Of Tertullian, I say no more than that he did not belong to the Church.