I talked with my dad yesterday, and he told me that if things do not work out, my dad will allow me to live in the apartment by myself and cover the full rent.
This is because my husband the other day told me that he did not want to live here alone, and not only that, his stepfather told him that he was concerned about the rent if we broke up. Even if my husband did want to stay here, he could not afford the full rent.
So, if we did end up breaking up, my dad has given my husband an "out" on the lease, meaning that my dad would tell him not to worry about it. The lease runs for another 8 months.
My husband would then probably have to go and find a room to rent, as he only makes so much. I would then stay here in the apartment until the lease runs out, and then see what I want to do. So at least if this does not work out, the drama of rent and money would be solved (we would each split half of what is in our bank account, including his 401K).