We believe in it as the religious texts describe. It was narrated that it is a stone from Heaven. Even if it was proven that it is a meteorite, such a thing does not oppose the unseen side of it as the texts indicate.
IIt is permissible – but highly disliked – to marry a Zoroastrian woman temporarily. As an obligatory precaution, it is not permissible to marry her permanently.
If the two parties wanted to renew the contact before its specified time ends, the husband should forgo the remaining time and there are no specific words for doing that.