CROCHET CARDIGAN

What's the official term for when you can't stop buying things that are crochet?  So much so that you might as well have a Google alerts for it, invest all your money in the crochet industry (since you're the reason the shares will increase in value), and change your name to Crochet Lover 2014?  Or at least your email address.

I'm asking for a friend.

(Cardigan is from ASOS)