How do you know of sharafat of a girl? It might be possible that she repent her sins, or Allah wants to give her chance.
Your modesty is the business b/w you and Allah. Do we need to question it?
when? It depends on Allah. He could give you in this world or hereafter.
why are you worry about those characterless girl? if they did something bad, that is not your problem.
I cant understand the reason of your anger on those girls. Grow up and get a life. You can make duwa of good husband, but please dont put any anger in your heart against those girls. You cant know the affairs of Allah.