Hello, verySadPerson.



A marriage counselor could be considered, but the information you related that may not be possible. You could also consider legal advice as well. Here are some links that may result in feedback for your situation.

Relationships & Communication - Forums at Psych Central
Depression - Forums at Psych Central
Coping with Emotions - Forums at Psych Central
Grief and Loss - Forums at Psych Central

I have put the link to grief and loss because it is like you have been grieving over the relationship and trust you once had with your partner. That's also why I mentioned legal advice as a possible option, just to cover all bases(like a Girl Guide, always better to be prepared for anything.) Take care.