There is no need to comfort her. Everyone is an adult, and everyone is responsible for their own choices. It is wise for you not to get involved. If she has made up her mind, you don't need to comfort her. Adults will pay for their choices, whether right or wrong. Persuade or not to persuade to leave, one is that if you regret it, the person you hate is yourself, and you can't guarantee that you will find something better if you leave.
As a best friend, I don't think it's necessary to give advice at this critical moment in my life. Just give her pros and cons and finally support her decision. We can't be responsible for other people's lives. Everyone must bear his own cross. It's best not to persuade anyone, because without the client, you can't really feel the feelings of the other party.
Moreover, a woman's divorce is not as difficult as she thought. The key is whether she is prepared. Without money and family support, if you can't support yourself, it may be very difficult in the future. But in any case, there is no opportunity to speak independently of the economy, no self-confidence and no easy respect from family members.
Let your best friend think about it, think about the future growth environment of your children, and think about the next 20 years of your life. Be brave when you can change, otherwise it will be more difficult to pursue happiness in the future. Personal privacy such as marriage and divorce, even as girlfriends, should be less involved, no matter what the final situation is, it is not good. Let your best friend give herself a cooling-off period and see what she really wants and pursues. After the cooling-off period, if you still want a divorce, it is not a question of whether you want power or not.
Only being wronged by the wrong person in life will give children a worse future. Marriage and family are never blind compromises, but a measure of us. Not you, me, him and the children, but us, who love us happily.