Well I got god of the arena and tried corein and she's doing the same thing lmao.
This time I am however savescumming.
Had no problem on my friends playthrough I guess I'm cursed
There is many underlying things though for the "persuasion".
1 attracted - some npc's will be attracted to your character and will be easier to persuade.
2 compatible stats, which is hidden from the player kind of. notice how they have traits, cruel, mercy, devious, honor, valor etc.
So if you are the opposite of theirs it dont help your case.
3 your social standing - clan rank, and also if you have a fief or not.
When you say are a rank 2, the women will "entertain you" but warn that you need to rise in rateing as they expect much - read court them longer, build up more relations with their clan, until you hit clan 3 for instance.
Should you actually own a fief - you only need to persuade them 2 times instead of the normal 3 for that final part.
4 relations between you and their clan, so if its good 10-15+ its much easier, now if its 30+ (where the clan leader see you as a friend) its even easier.
As for your problem with she rejecting you, you do know that isnt the end of it..?
Yes its true you cant ask her to marry you directly anymore, that door is closed.
But... talk to the clanleader ask for a marriage alliance, and if she is the oldest or next in line to be wed out - you'll get her!
Note that if you arrange the marriag through the clanleader, and dont have good relations with them, you will often have to pay a fortune - read 100k denars isnt out of the table.
But on the other hand the wife often brings with them armor, weapons etc that is worth 100k or more in some cases.
So no, your game isnt wasted if you can get her clanleaders approval..