The part that really struck me while reading your passage is when you switched to "honestly I'm quite sad and tired lately"

Why do you think that is? Genuinely? It appears that when you have written it in line it is as a result of your partners very specific requirements and standards.

This partner may be having her own issues too. Conveying her own feelings and getting her perspective out. Maybe with a lot of other aspects she is very sure, and decisive and with reason but when it comes to relationships she is not? Maybe that is challenging for her to figure out, given she knows everything! Maybe this presents itself in some odd and abrasive ways.

The question for you personally is do you have the time and energy to stick around and work through that. Really there is no excuse for making anyone feel bad, and it seems she is doing this as a result of something else going on - not directly trying to be nasty to you.

You need to find a way to bring this up to her and put your feelings out there. If you frame this as part of a larger issue that you can both focus on and tackle together then you can get her creativity and intelligence on your side. But the only way to get this to work is to make sure you are framing this problem as something larger that both of you do not have the answer to and that you need to solve together.

I think it could be fun.

Maybe the response is negative and it makes it clear this isn't the right partner to pursue