Secret nikaahs

Q: Nowadays, majority of husbands have a single wife with the exception of some. In this situation, how can a woman be asked to tolerate her husband's second marriage. Isn't it a responsibility of the husband to inform her prior to the marriage of him entering into another marriage so that she can choose to marry him or not?

Reuniting after a faskh

Q: My question is twofold: 1) Can I retain my wife in a marriage wherein she claims that I have not been emotionally supportive of her and she is unhappy, yet I feel I want to work on the issues (especially since we have 3 children to consider)? 2) We have already divorced twice (2 talaqs) and knowing that after the 3rd talaq we cannot reconcile without first marrying other people - what if she had to pursue a Fasakh (annulment) which is then granted, can we perhaps still re-marry after that?