I cant bring myself to leave him ? but i know i have too ? or do i ?

okay so ive been dating this guy jack since i was 19 and im 21 now and i was best friends with jack since we where 7 , hes in a band with 3 other guys who are my best friends too , i also have been living with him and my bestfriend tyson who is one of his bestfriends too and in the band , ive been living with them since i was 17 cuz i got kicked out of home , tyson brother owns a house and it has alot of room like 6 bedrooms and his brother is only there about 3 days a month cuz he works far away , anyway i havent seen my parents in a long time since i was 16 , anyway he goes on tour a lot , for about 3 weeks to 2 months , just depends , i some times go but its hard cuz im trying to get into fashion and i have designed for some small labels but not big ones , anyways he really is a great boyfriend , says i lvoe you all the time , very nice , sweat , good looking , we click so much , we never fight , im just so happy when im with him , we share the same friends so its easy , i go to newyork or other places when he goes on tour sometiems , to do my designing , he pays for it all , he really is my everything , hes there for me , even when i call him up at night when its like 4 in the morrin and he had a show and only went to bed like 2 hours ago , he will stay on the fone with me for ever , anyways hes on tour and i got a phone call saying a major fashion company want some of my designs and want me to work full time designing and they are offering me a 3 year contract , but i have to live in newyork , and we live 9 hours away , hes coming home in 2 weeks and i now i cnt leave if he is there , i really dont know what to do ? job ? boyfriend ? i was pregent when i was 19 but lost the baby after a month , he was very suporting when we thought we where having a baby and siad he was going to be there for me forever , i think he is the one , how i can i just leave that , if i dnt take the job , i will never get a job like this again , u only get one go in fashion , i really dnt know ? if i do take the job i cnt leave whn he is around cuz i no i wont , he is on tour right now , so i can leave and just leave a note or soemthing , but i dnt wanna leave him ? help