Wrassecal - Thanks. Yep, March 2 of this year
my suggestion would be to get her involved in the hobby too, buy her a fish, so that she will have some envolvement in the hobby.
That's what my husband did (at the time we were just dating, but he let me pick out fish, name them...I even got a yellow tang as a gift...) and now, i'm more hooked than he is.
take g/f to the lfs, let her see the tanks and the fish....if you include her in the hobby changes are she'll except it better