I was going to suggest something along the lines of Divvy.
How close is the next nicest town? Do they have a library where you and your baby can go to story time or a playgroup? What about going out once a week for a nice coffee and a treat? Is there a nice walking track or park that you can go to? This could aid getting back into shape if that is important to you.
I also think a chat to PANDA may be helpful.
I am in a niceish suburb and feel isolated at times so couldn't imagine how you would be feeling. I'd also keep the lines of communication open with your man. He needs to know how you are doing.