I'm secretly testing a girl that I'm seeing
Why would you want to test her?
I don't want to waste my time on her if she isn't the one.
Please don't do this. This is a sign that you are insecure with yourself.
Nah I'm going to do it anyways. I would just be wasting my time with her if I didn't test her.
You should not put her under these secret tests, it is not cool. You should know if she is the one or not without running weird tests. You just feel it.