From your previous posts you talked about your relationship as being horrible and how he would do nothing .. Well kudos to him for finding a job! that should make both of you happy. The 12 or so hours apart should be a wonderful thing .. As NWgirl said this will give you time to do things you want and or need to do .. Make your living space as nice as you can. Enjoy the dog , go for walks , hit the gym .. take the time to do things to help life your spirits which will life his also.

If indeed you do have Borderline .. there really is not medication for you its more based on Therapy DBT and learning to control your reactions. Its not hopeless.

Enjoy some time apart and improve your life and outlook.

Good luck !