Its normal to to feel frustrated and lonely

i met this guy where im living he is a visitor here in my country..we became friends for the first time and then after a month we become together and we live together for 11 months..we spent a lot of happiness each other..we go anywhere..we travel..we are so happy..but time comes and he need to transfer in the other countries i start to feel scary,afraid,jealous and a lot more mix emotions..when he was gone already we continue talking trhough internet..i nrily feel bad..i miss him..i was thinking that he is still here,,when i finished work i still see him..when i go in places where we always going i feel sad because i see his face..i was expecting that he is still with me..after that when we talk again in the internet i ask him if he miss me..he replied yes..i ask him again if he love me he said no..its rily feel bad because i feel scared maybe he will find another girl in that country where he is now..thats what always in my mind..thats what im scared and afraid..and then i think what the best thing that i will going to do in order i will not become crazy becuase of him..and i found out that what if ,if i will learn how to let him go?and i research about that and i found this page.it was so nice hope that it can giv me more advise and help me to move on..