Sometimes you just have to do what you have to do. things to think about is I'm assuming your DH enjoys what he is studying and wants to use his diploma and its in a field he loves. that would help him being away, would that satisfaction make up for being back with your guys but not working in a job he enjoys itms..

DH and I have been doing a long distance relationship for a fair part of our relationship. I've been trying to work out actually how long but it has been about 50%/50%, I have had to work away, we have though never been more than 3 hours away from eachother (the furthest was when we first started dating and we were in different cities because I was doing my midwifery), since then the furthest has only been 2 hours, so it was possible for me to come home on my days off (simply put 'weekends' even though most of the time it was during the week).

It is hard. communication is the big thing...you have to remember to keep talking to eachother, probably more than you would if you were there everyday. we talk on the phone atleast twice a day, and txt msg eachother all the time (normally only limited by the fact he is driving all day)

we don't have little kids though (yet), so that would change things too, and is a side I have no experience in.

I personally think maintaining your DS's program is really important...and should be a priority. but thats something you guys need to decide.

I hope I helped...Its a bit early and Spock is taking all my brain cells, but if there is any specific questions or anything let me know =) I'd love to help you out.