<human>: Provide a brief overview of the text.

I've been seeing a girl for a little less than three months and things have been going really well. We're both recent grads with full time jobs but she lives at home while I have my own place. She's in biology and I'm an engineer. She has a little sister who is applying to undergrad next year.

She was talking about being jealous that her best friend signed a lease because they were planning on moving out together. I said she was probably saving a lot living at home and she said "Not really. Most of it is going into my sister's tuition fund." Apparently, since her mom was laid off last year and her dad's income is mostly used up for household expenses, my girlfriend has been saving to send her sister to college. She doesn't want her sister to take out loans because her parents paid for all of her own college tuition and she knows a lot of people become homeless through student loans through her volunteer work.

I didn't say anything and I know it sounds bad but I'm uncomfortable about this. I'm serious about my future and finances and want a girl who is too. I want to spend my twenties traveling and eventually buying a house and getting engaged. If this girl plans to spend the next four years paying for her sister's tuition, she'll have no savings and will probably never move out of her house or go to grad school. Plus, what if she keeps giving out money through family obligations? I know we're young but I don't think it's too soon to think about futures and this girl is insanely compatible with me. She's super smart, passionate, and thoughtful. I don't know another girl I respect more and I'd like to get out early instead of waiting and breaking up with her after falling in love. Any insight is appreciated.
<bot>: Girlfriend is living at home and using all of her savings to pay into her younger sister's tuition fund. Don't know how to feel about this.