He is now firmly established in my mind's eye as "Spreadsheet Guy" and has evolved into the kind of character who'd ask you to "come back to mine and see my spreadsheets." as a chat up line.
Since's he's made such a splash on Facebook, its a pity you can't hire a Tik Tok rapper to tell the story of spreadsheet guy.. "Aint never gonna get between those spreadsheets" etc.
Levity aside, I maybe completely over thinking it, but perhaps he's produced the second spreadsheet so that he can use it to say.. "This is the generous offer she turned down." and keep the first one, which casts him in such a bad light, hidden.
Because its really bizarre to be so rude in person and on social media and block and then turn around and try to woo you with a different spreadsheet.. it doesn't add up.
Was he hoping you'd reply to the second spreadsheet with something rude.. on the 2nd spread sheet email... so he could send the ss with a rude reply on and "Just look at the response I got to my generous offer".. He couldn't do that with the first spreadsheet because of course, that wasn't generous at all. It was in fact a scam.
Perhaps he's doing a hasty reputational repair because he's thinking what he would do in your position - which is if he were you, he'd rush about showing RL friends and his Facebook group the spread sheet saying "Just look at the scam she was planning" So he's created a new one for that purpose, to paint himself in a better light, like any grifter would do.. "I'm just a hopeless romantic who's been dun wrong." Especially since he will probably be looking around for the next candidate for funding and he doesn't want any unfavourable reports to get out.
He hasn't understood the quality of your character OP. Because he hasn't got much quality in his own.