Not saying no hope, just that it's not easy. So, you say you're living together. Do you have a joint tenancy agreement? Joint bills at that address? Can you put wills together naming each other as recipients? Life insurance with both of you on it. That's the kind of stuff they're after. If he's not going back until November you do have time to do this, but don't wait until September/October, start building your evidence now. Also, does he have European heritage? If so, he may qualify for an EU passport, if that's the case you could continue building your evidence in the uk?