As salamu alaykum sister,
Sadly once one begins lying, it is often hard to gain trust back. Perhaps this is what has happened with your marriage. While in the past you had to lie to keep yourself safe, it is a habit your therapist should be working on with you to break. I am glad to hear however that you are in counseling as it is most important as you are diagnosed with major depression, as well as you are continuing to go through struggles in this marriage.
I would kindly advise you dear sister to continue with your therapy, and discuss with your counselor what is going on. If your husband is insistent that you move out and you have a safe place to go, I would suggest a separation to avoid further trauma or escalation of the situation until the two of you can reconcile your marriage insha’Allah. Please do get marriage counseling if he is willing insha’Allah as well as talk to a trusted imam, who can guide and direct you both through this difficult time.
You are in our prayers, please let us know how things are going.