You went on a date and after got a text along the lines: bla bla bla but no thank you.

A lot of guys try to not take it personally. She doesn't really know you. Maybe her ex is back. Maybe she is dating someone else. Maybe her grandma died. Maybe she thinks you are a great guy but just one random thing that somebody else will be ok with puts her off etc etc. And all of that and the situation and random factors can explain a lot of rejection. But....

Here is a radical idea:

She just doesn't like you enough to fuck you. On objective factors she thinks she can do better and isn't attracted to you.

And that is OK.

That doesn't mean you will be alone forever. Or that you can't find someone else to date like her. If you want a relationship you can be happy with less attractive women.

Try to see what you did wrong and improve. And come to terms that for now and maybe forever you won't be able to seduce women like her.

Let it go! In life you can only try. If you try your best you will get a lot futher than not trying.

You already won if you had the balls to go out there and be shot down.