I told her that I'm really happy that photography makes her happy, but that there's no way she'll make much money doing it and she already knows that. It would make life more stressful and ruin the fun she now enjoys. And since I once tried turning a creative hobby into freelance work, she knows I'm telling her the truth from my own experience. I wouldn't want to tell the most important person in my life some BS flattery--if I'm really going to support her, I have to be totally honest.