Don't get sleep, fear of loosing someone

I am very good in professional life, good with friends and relatives.From childhood I feel I am lack of love and caring which usually child get from parents. Started taking house responsibility after 12th class along with studies. Was in love with a girl during college for 4 years who took great care of me but couldn't marry her due to family pressure. Later focussed on carrier and got married in year 2013, but in few months was not comfortable with my wife behaviour as she was very violent and got separated. Thought of remarriage found a girl who is very caring and loving but when she get angry she use so harsh words and says I will break up and don't speak for few days which hurts me badly. Every time she appolize and says won't repeat again but it happened 3 times in just 1.5 months. When she leaves & go I get disturb, tears comes out, start talking to myself, don't get sleep at nite, stay quite, heart pains a lot. I am very strong person but in front of her I m very sensitive.