It's not that the suit necessarily caused low attainability - I'd say it was the whole package. Overall I came off as a successful ultra high value guy, and she didn't see me as attainable for "pinning me down" because she saw herself as lower value (as a college student). The solution here was to show more interest in her, even to be slightly needy. To lower my own value to be more in line with hers. Unfortunately I was so caught up in work stuff that day that it came off to her as feeling disconnected - and thus unattainable.
This girl autorejected at the end of our date. She thanked me for making the time to see her, and that was it.