Husband telling the wife "go and don't come back"

Q: I had to go buy stock for the company I work for and I was scared to tell my husband this because he would badger me about doing things for the company so I told him a lie and said I went to China Mall for myself instead. On numerous occasions I did tell him the truth and informed him before leaving the garage but he always used to fight with me saying that I should not do anything for the company. On one occasion he even came to the garage and caused a disturbance.  I almost lost my job but thankfully my manager spoke on my behalf. On Saturday, 1 February 2014 I went home after work my husband told me in front of his mother, father and uncle that I must leave and not come back. I need to know what is the status of my nikkah as per shariah?