Can anyone please!!!!!! answers this I just Need some HELP? please?

I have been chatting to this guy for “4months” now he just came back from Iraq his in the “army” after 4months for chatting to him I have always been there for him, when he was sick or upset we meet through a friend and he saw my photo so Im still trying to get to know him. However, were the same age (20) and were from the same “country but we just live in different “states”. He always says Im “thinking of you baby” & I cannot wait to see you. Anyways his back at “home now” &, he said that he would come to see his Dad and me; he is still in another state- he just arrived A few days ago so his back at home with his Mom However he said he would like to take me out for coffee. He has been planning this for along time he told me “3months ago” just so I would come to the date but I don’t know when he will be in my area he hasn’t Told me yet because his dad lives were I live, he also asked for my “number & I called him a few days ago since he Messaged me and asked me if I got his sweet Messages But I didn’t. & he told me to call him anytime But My Mom and dad are going overseas in 4weeks time!!!!! and I don’t know if I can see him since Im going overseas with them. I have No choose I have to go because My grandmother is getting old and they think she might die so I sent him a Text Message saying what was “happening” and I told him that I wanted to see him before I go but Im not sure why he hasn’t replied Yet??? I know he might be busy with is family but do you think he will reply back because I sent that Text Msg Yesterday. What should I do I feel so heartbreaking and How do I know what Is happening if he doesn’t reply Im so confused???? What is the right thing to do?