<human>: We first made contact about two weeks ago, turns out we both are going to the same college. Her ad mentioned that she had a physical disability and needed a chair to get around. This didn't bother me. Our conversations via text were "ok," but I figured it was just hard to gauge her personality thru text. We agreed to have a quick lunch date after classes.

Upon talking to her in person it was obvious that she had suffered a major brain injury as well. She spoke very slowly and had almost no short term memory (she asked the same question several times). I wasn't expecting this at all, and I'll admit that during a certain point in the date I teared up just a bit because I felt really bad for her. (I actually cried a bit in the car.)

She's a lovely girl, but I'm just not sure she's capable of having a full relationship (at least the kind I am seeking). I didn't feel much of a connection emotional to her in terms of someone I'd want to date, but (because I'm that guy) I do want to meet for lunch now and then as friends. That being said, I'm afraid I'd lead her on by doing that. I'm sitting here now overcome with emotions because I don't really know what to do, but I don't want to be just another asshole to her.

Provide a brief overview of the text.
<bot>: Met a girl whose brain injury was worse than she let on in her ad, but I don't want to be an asshole.