DizzyCandy, O,K. but if the money comes from your partners account then in effect he is paying your rent. Regardless of how the money got to his account in the first place. If you want to keep your finances separate then use your own account to pay all your own bills.
But you are in fact being maintained by your partner to a degree, and definitely as far as social welfare are concerned. They will take into account his income when you make a claim, but as you say if he has not got much coming in then maybe you will come in at the level whereby you can make a claim.
Did you mean that you pay half the rent, your share. If this is the case then you do need to speak to the welfare officer. The best thing to do is make a claim anyway and see what happens but you will have to declare that you are living as a couple. Good luck.