Confessions of a Shopaholic?

So my girlfriend calls me every once in a while with a confession. So far, every one of these confessions have been about her unnecessary habit of shopping, where she buys things she doesn't need spending way more than her budget allows. She's always complaining about not being able to save the money she earns. Especially this month being the slowest in the year for restaurant businesses, waitresses have tight wallets. Working as a part-timer, she'd only made $140 this weekend. All of which she'd spent today on articles of clothing she could have waited to purchase until next month when the prices would be reduced, or when she's financially secure. The funny thing is, she will only ever wear these clothes probably once, and not wear it again for a very long time. I still don't understand a woman's logic with clothing. However, this is not my business, nor am I angry with her. Although, I am a little disappointed with the way she manages her money.