Ha - it's not uncommon for that to happen when yore nervous. It's just called getting the shits Every summer when we were doing exams in Uni, emotions were high, people were strung out, and the toilets in our apartment became a sewer...
But yeah, I've had it before first/second/third dates, with guys I really liked.
Why don't you ask the guy why he's asking you in advance?!
"I think the basic anti-aging diet is also the best diet for prevention and treatment of diabetes, scleroderma, and the various "connective tissue diseases." This would emphasize high protein, low unsaturated fats, low iron, and high antioxidant consumption, with a moderate or low starch consumption.
In practice, this means that a major part of the diet should be milk, cheese, eggs, shellfish, fruits and coconut oil, with vitamin E and salt as the safest supplements."
- Ray Peat