Is there spousal support in SC when there are no children from the marriage?

I will be 53 yrs old in Aug. I moved to SC Mar. 2010 from IN to be married - Quit job of 5 years, had been in same working field for 17 yrs prior to that job. Data entry and system monitoring within IT dept. All my skills were OTJ and I have no degree. I resigned from my job w/ all benefits, pd vaca, med. dental, life, 401K. I feel that I gave up all my security, my apt. and my family to be married. I was told I didn't have to work unless I wanted. My family is all in IN and my mother has since been diagnosed with cancer, have been going back and forth to IN for all chemo treatments, Dr. apts., surgery & to take care of her. I feel I am not qualified in the job market anymore and will no longer be able to get a job in this field. I made 17.10 hr at my job of 17 yrs. but had to take cut to 13.10hr at the last job. I have been with my husband twice now for the past 10 yrs. but was never married to him, he kept leaving and going back to his ex-wife/kids, he swore he done. Stupid me