is this common in relationships?

ive been married to my husband for 4yrs, we have 2 babies under 2, but we still have a lot of time together. we just never spend it together cause he prefers his phone over me. and although he only wrks 3 days, he never helps me w the kids, chores, cooking, nothing. hed be on his phone 24/7 unless he sleeps or shower. i feel like were just roommates and i really feel like a single mom living in welfare. hes really distant unless he wants to eat or have sex. but he still wants to cuddle in bed. i wonder all the time what hes even doing on his phone, he always hide it from me whenever i walk by him, so i wont see what hes doing. idk what to do anymore, ive talked to him about it and he says he doesnt know what to do w me and he has nothing to talk about w me. because weve already done everything together.