My girlfriend said something to me yesterday that really hurt me and I'm not sure what to do.

I, M41, have been dating my girlfriend, F29, for 11 months. We have a really great relationship. We laugh together a ton, we always have a great time when we hang out and my family loves her. We have some minor things we disagree about, but we are pretty compatible overall.<br><br>One thing we see very differently is money. I've always saved as much as I can and I have a pretty big savings built up. I make a lot of money and I've always put myself first in terms of saving. My girlfriend makes also makes a good amount of money, but she spends her money very freely. She doesn't spend recklessly, but she definitely will spend more than I'm comfortable with on random things. I've brought this up a few times in the past and suggested she save more but she just says she likes living in the moment. I don't have a problem with that but I can't help but worry a little.<br><br>She recently had to move out of her apartment because they were converting to condos and she asked if she could move in with me temporarily until she could find a new apartment, or until the condos were built so she could buy the unit she had been renting. I asked her parents for "permission" as they are kinda her rock and they said it would be fine.<br><br>So she moved in with me a few weeks later. It's been going well. It's actually kind of nice to have someone around all the time. Last night we were sitting on the couch and she was looking at apartments online and I asked if she had found any she liked. She said there was one she really liked, but she was waiting until pay day to put the money down. I offered to lend her the money and she said she couldn't afford to pay me back right now. I told her she didn't have to pay me back, I just wanted her to have a place to live. She started crying and said she feels like such a burden on me and that she's such a piece of shit for not being able to take care of herself and that she's failing as an adult. I was like "hey no, don't say that, I want to help you, why would you think otherwise?" And she said "you make so much money and have such a good job and you're so successful and I can barely afford to keep a roof over my head." I was like "Okay, you're upset right now so whatever, but job and money don't equal success. There's a lot more to being a good person than just job and money." And she said "yeah, so you're saying I'm not a good person? Because I don't have as much money as you, or a good job?" And I was like "what? No! That's not what I said at all." She continued with "You've always looked down on me because I don't make as much money as you, you think you're better than me." Which is not true. I do not think that. And I told her that, but she just seemed to get more angry with me and eventually she went to bed.<br><br>I don't know what to do. I don't think of her as lesser, I don't care that she doesn't make as much as me. I would never want her to feel bad about herself or lesser than. I feel like I said something wrong, but every time I think about it I don't know what I said wrong. I just want her to feel better but I'm not really sure how.<br><br>**TL;DR:** Girlfriend said something that came off really condescending, how can I make her feel better without making it seem like her opinion is invalid?