what should I do

so my bf of 5 years we have 1 daughter and a son on the way .. we never lived together but now being i have kids i was hoping he wanted to move together.. he just told me he is moving next month and is moving alone & that he is not obligated to live wit noone but to me if we together wit kids that is the right thing to do .. so after the back n fourth i told him im done and my time was clearly wasted and I dont want to be wit him anymore he tells me I can move and he will help with everything but what sense does that make being in two different households i no that we do argue but its just not the right thing to do and im done I feel like i will be settling if i allow it and continue to be wit him