Search Results: is he being insensitive

So after I got off work tonight, I had to fix my car, nothing major but a good extra hour of work after 9 hours of work haha. My girlfriend was asking what I was up to and wanted to see what I had done, which I was excited for because I love cars and am glad she cares/notices. Anyways she came down to see and I mentioned my roommates and I were going to try a new Mexican restaurant that evening and she was welcome to come. I told her we would be lieaving really soon like 10 minutes (it was already about 7:30 at this point) so she goes to her apartment and I text her that I am leaving to get her and when I show up she takes another 10 minutes to get ready while my roommates are waiting in my car outside >_< why does she have to get re-ready for the day? She already looked good when I first saw her. Anyways we left and then when we got there she mentioned she forgot her wallet which is fine since I often pay for her but she made a huge deal about being sorry and that she didn't want anything to eat and I kinda snapped v_v I told her (in private) to just stop that I was going to pay for her either way it wasn't a big deal and that I wasn't going to change my mind, that all she was doing was making it awkward for everyone. She then ordered and was almost silent and wouldn't look at me for the rest of the time there. Why was this one time such a big deal to her for me to pay? Anyways we talked after and both apologized but just wondering should I have apologized? Was I in the wrong by hurrying her along? Sorry for the length and thanks for the help.