How do feel when someone you love leaving you to faraway???

i can't i can not live without him i don't know if i live without him i will stand any longer or not i don't know what i liveing for if he not with me i feel depress to find new one because i had love him so much and i had promis that i love him so much. but he not with me any more i still love him i will love him for ever but he never that i love him so much. how can i gonna let him him know i can not live without him i love him so muchhhhhhhhhhhh