My mother always told me, "Don't hook up with someone who has more problems than you have". Alcohol is definately a downward spiral that YOU can not control. He is at the mercy of himself and will be of no help to you. Example: you are at his place and fall down and break an ankle....but alas he is drunk and can't even drive you to the hospital. MY STORY!

Life has dealt you a bad hand, but not a losing hand.
I agree that you have several of the top life stressors on your plate and that is an awful thing for any person to handle especially one with chronic disease.
Try not to let them all overwhelm you. Find good support and uplifting people. Calming the stressors is important in calming the MS.

And yes....this too shall pass