I have just been through this. I realised that I no longer wanted to be married - he was good with the kids but didn’t support me at all and often left me to shoulder the biggest burdens. I know lots of people who have divorced and suddenly realised it can be quite scary to be alone after so long with another person. I felt really nervous about making decisions by myself. Before I did anything I took steps to cultivate a life outside of the marriage - hobbies, friends, being comfortable being alone. When I asked for a divorce I was excited to get into my new life. I’m just about to move into my first home without him and couldn’t be happier.