I never really thought too much about this exact same problem which I have, until recently. I started dating a girl and on our most recent date she decided to bring home made pizza, which I foolishly talked/raved about on a previous date, not thinking she'd bring some with her, but she did. The date ended fine, but I have this immense guilt about turning down her food which she thoughtfully took the time to prepare. After reading all this I've decided I'm not (completely) crazy and I'll let her in on my problem. Good and bad to know other people have this issue as well.