I want to quit

Hi, I am new here. I gave up smoking for the third [serious] time a few months ago after reading Allen Carr's book - it was really easy to do.Unfortunately I started smoking again about 7 weeks ago, and am not happy about it at all. I want to stop but am finding it really difficult this time,Herbal cigarettes, my husband smokes heavily. I ran out of cigarettes today and was pleased to do so,quit smoking, he has just gone out and I found he had left 4 cigarettes in a pack and I just smoked one. I think he left them to be kind to me, because he could not visualise his own life without smoking, but how can I make him see that I don't want to smoke? Any suggestions please?