It will accomplish giving me a sense closure

You need closure after one date???

She was being polite and now she's doing what everyone else does after a mediocre first date. She may have liked you, but she might not see much there long term. You shouldn't have allowed yourself to end up on such a pricey first date. You fucked that up. And you need to get better at accepting that most first dates won't lead to second dates.

In the future grab just stick to happy hours or coffee in SOMA. Some guy I was talking to tried to get me to a fancy dinner for the first date and I immediately countered with a casual happy hour at a different nearby location. It's not a big deal to suggest more reasonable plans. If they aren't flexible, don't go out with them! We had one drink each and he ordered an app. I, of course, offered to split the bill (which was obviously pretty cheap). He insisted on paying since he had the app. I had a $6 beer, no big deal. The situation was friendly and polite; we joked a few times about a second date. But it was also clear there wasn't much of a spark and the conversation lagged at times. We said a friendly goodbye. Neither of us have contacted each other post the date. Mutual fade, both of us reading the signs. No need for "closure". No need for passive aggressive messages.

Ta da! That's how you date in SF. Coming from a female half your age.