Not true! Because she honestly could be busy or something could be going on and if he’s too gung ho at this point he could fuck it all up. It’s true you probably can’t improve the situation but you can definitely make it worse.
Having dated a lot of women in my life, in my experience what Dan says does have a lot of truth though. I’ve had that happen where the first date is perfect, a lot of physicality, and then nothing. That’s why I say sometimes Women can be a lot like men.
So just to be clear, she’s responding to your messages, but very infrequently?