I was in a long distance relationship for a year, we were able to see each other every couple weeks luckily but I know the feelings of missing him and dreading the thought of the remaining months (I still have 2+ years long distance as he is military). Talk as much as you can, especially over the phone- texting is great but phone and video are better because hearing their voice and seeing them are more personal. Send e-mails, share pictures, talk about your day. As time goes on it will get easier and you will become a stronger couple because of it! And when you reunite it will be amazing Plus, try to put a positive spin on it... you have the house to yourself, do WHATEVER you want to do!!! Go out with friends, pick up a hobby- anything!