10 years of marriage, feeling lonely and confused

I was born in India, and now I am in US (I thank God everyday for that), my parents decided to arrange a marriage for me with my current husband. I am (or at least I must say at this point, I was) an independent and brave person. At the time of getting married I was not aware of "adhd" and that my husband is adhd. His family was weird - his father was bossy and verbally abusive to me, so was his mother, sister and brother; and they all claimed to be "traditional". After a month into my marriage, I was upset, emotionally shattered inside, and crying all the time.I called my parents, and  explained everything. My parents were willing to start the divource proceedings, but my husband literally begged them to offer him another chance. Being soft at heart, me and my parents agreed to his request, and offered a chance to my husband. God now I wish I should not have done that. After that we came to US (thankfully) and verbal abuse got worse. Since I was under a dependent visa, I can't work, and he is the single source of income. My self esteem, confidence, intrinsic motivation, self respect, my WILL, everything was brought down single handedly by my spouse's constant demotivation, negative attitude towards everything, and most of all sarcasm and "I DON'T THINK YOU CAN DO IT". Also we are having 10 years of sexless marriage - I asked him straightforward once: are you planning to have sex with me at all? he always throw tantrums or stares at his electronics long enough to change the subject. I feel lonely, hopeless, and I don't have courage to leave him. I am confused. I don't know whether to divource him or not - I don't know whether I love him, care for him, or just feel sorry for him. He says he is changing, but he never follows through with anything. I can't possibly share this with anyone, as no one could possibly under the situation. Hence I find this forum comforting and soothing. Anyone has any suggestion or thoughts....please help me. I need to bring my confidence and courage and self esteem up... and it is very hard.