Help urgently

He wants to take a brake but we live together. I can't afford a new place and I have no were to go. I don't know what to do it's killing me. He was all I had and now all I have is to work and save up enough so that I can afford to move out but I don't knew how I will survive on 400 a week when the rent I'm my area is 250. I don't no what to do I need advise anything. He says it will be Easyer  for us to live together because we both can't afford not too. I feel hopeless pathetic I love him but he's not happy with me. I just don't know what to do at this point .