"The chastity of widows and virgins is above the chastity of marriage."How to put this gently. How about NO! WRONG! ABSOLUTELY NOT!
Chastity is one of those either or issues. You are or you aren't. There is no way of being more or less chaste.
By the way, as I've said before, there is nothing about virginity that guarantees chastity. You can be utterly untouched by anyone else or yourself and still be unchaste.