Find a girl who is a smoker herself, but not a BLAZER..
Then tell her that if she wants to have all the nice extra presents and holidays etc she has to keep her mouth shut!
Or just get her involved with the garden maintenance, then if the cops come a knocking she is involved too (so if you break up she is also gonna get knicked.)
Yea its a sticky situation.... Or just plain hide it from her. But saying that. its probably with hardest thing to make time for your partner and your room..