Yes, I have thought about it. I think here is a rhetorical question involved - should I sacrifice my life to a somewhat disfunctional person or should I go on? I am aware that something bad might happen to him after our divorce, but I don't believe that one could place blame solely on me. It's not my fault that he has depression. He has had it already before he met me.
And maybe I should give him a chance to meet and fall in love to other woman, who knows better how to deal with depression. Maybe my husband deserves more fitting woman to him than me.