<human>: Can you summarize the given text in a few sentences?

So recently gf has claimed all kinds of medical issues and no longer wishes to be intimate. Up until this point I have been buying her stuff and driving her to/from work. I usually would show up on time, and it just got to the point she was already ready to come out when I arrived, didnt even have to exchange text messages or had to wait around for her to come out or anything. And I would buy her food and stuff, without any question.

So Im wondering is that where I went wrong? By being too predicatable and "nice"? Now that were no longer intimate I just feel like shes using me for car rides and free meals, among other things. But because Im a decent human being I feel obligated to continue to help her, and because of the situation I cant just dump her on the street. So Ive already stopped paying for her meals, but Im wondering if its right to pick her up late from work, drop her at work late. To express my disdain for the situation. Do you think that would change anything? Ive already been doing this for a week or so and she continues to depend on me, its weird.

Im still trying to figure why the rapid mood shift, and what I have to change in myself so this doesnt happen again.
<bot>: Girl stopped being intimate, but continuing to take advantage of me for being "nice". What happened? and how do i recover?