confession

What "red flags" don't initially come off as red flags till later?

I was reading the other day about a guy who had a very spontaneous, living-in-the-moment girlfriend. He had a brief gap in his housing situation (I forget, something like flooding at his home) and decided he'd move in wiht her for a couple of weeks to test the waters of that escalation of their relationship.

What he discovered is that she isn't merely spontaneous, but rather she's incapable of thinking ahead. Doesn't want to cook food when she's not hungry; doesn't want to shop for food until she's desperately hungry, etc.

IIRC he broke up with her as soon as his home was ready.