Boyfriend Problems

Hey so , me and this boy have basically been talking / dating for a couple months  months . He is very protective and gets extremely mad when I talk about.boys , but sometimes he talks About girls just to make me jealous . But today he has read both of my messages without responding . Yesterday we talked on the phone for like 5 hours . All I do is think about him and wonder if he's safe, like wise.  What am I feeling . All I want to to is hear his voice and talk to him 24/7 . Sometimes we argue but at the end of the day it's like he's still the only one on my mind .