To answer your question, success in marriage is from Allah. You have to choose and select your husband to be wisely (when he proposes to you). You don’t go and hunt for such a husband. You have your trust in Allah and Allah will send a suitable one for you who will only come to you because you are wearing the Hijab.
You have to trust Allah and surround yourself with practicing sisters who in return will be one of the causes for you to get married.
As for your parents, your mother still loves your father and she is at least loyal to the good times that they have been through together. This is something you may not be able to understand as you are judging your father from your side only.
Men by nature have dry emotions which they rarely express. That is why children complain of that. However, the wife feels her husband and knows how much love and respect he has for her even if he shows or says differently. Therefore, don’t say anything evil that would change your mother against your father.