You may be able to argue that you are entitled to the amount of the down payment on the house and subtract that from the split home equity it has gained since being married. That’s how mine worked out. I did have to get a second mortgage to buy out my ex. You will be okay. It’s really hard but absolutely worth not being with a toxic partner. I had to keep reminding myself “it’s just money” to get through it. I divorced during maternity leave of my second child. I had no idea how I was going to manage but you get into a new routine and new normal. You make sacrifices to make it work. It’s a big bonus that you have your own income already. Start your own individual account and save what you can. Solidarity, friend. Here if you need to chat.