Dont trust his friend or his claims that he will provide for you... Very often they make big promises but after they are out for a few months they suddenly have all these expenses and start short changing you.
When a spouse leaves they should put a separation agreement together... the L will explain this. It does not mean you are divorced, it just puts in legal how the finances and custody arranagements will happen... rather than you just being at the mercy of your husband's "generosity"
