Leaving Hubby (not divorce) for College.?

Hi everyone. Im Lindsey, Quick question. My husband is in the Marine corps and Im at stay at home wife (veryyy boring) My thing is for the last few semesters Ive been taking online courses at my old hometown collage, thing is Im not very self disciplined and dont do as well with them as I do in the real thing. So my question was Im really debating on going back home to stay with my parents for this next semester (ill be there about 40 days anyways for a deployment He is going on) but I was debating on staying the whole semester and coming home for the semester. Is this morally wrong? Should I or Should I not.. Just questioning the idea and need some HONEST AND MATURE answers. please no lame answers. Thank you .