my boyfriend an I have have two kids together

He wants to get married, ox 1987 an I'm a sheep 1991. Ever seance we had our kids ( boy 2 2011, girl 1 2012) he has been getting distant an wants nothing to do with me or the kids unless he decides hw wants to do something. Should we get married? At first sight it was love for me but I don't know if it was the same for him? I know I love him an want to be with him, but he won't ket me leave the house without the kids, an it has to be ok with him first? I want to stay with him for our kids, but I don't know if its going to work or not. Any thoughts?