It's good that Kob back off now, if she marry Brook, she will be unhappy because of their background is so different, I rather like her with Por Sakrijai, they have similar background but too bad he is taken by Ae Pontip, I think for 2 people to be marry they must have similar background. Brook's mother she is so high class, so that is why she preffer someone from her background then let Brook marry someone from a different class. But I think Kob is better to find someone elese than marry Brook. But so sad for her, she was ready to settle down and have kids.