Is there any good reason to tell you beforehand if I'm not even open to being talked out of it?
You'd say you'd want me to tell you. But what's the point?
Part of me wants to tell you, but that's not a good thing. That's attention seeking in a negative way. That's the part of me that likes the idea of it upsetting you.
It's not really fair to tell you. You'd try to get me to not do it. I'd be setting you up to fail and then you'd wonder if there was something you could have said or done differently.

And, worse, part of me almost wants to use it to get something from you. There are actually things you could say or do that would keep me from doing it. But not for the right reasons. It would be manipulative and more like blackmail/extortion.

I wish you hadn't texted me that one time.
I always want more.
This is why I need such rigid boundaries.
No out of session contact.
That was your rule. I respected that boundary. I never even tried to push it. So why did you suddenly do so on a whim? It's not fair. Now I want it all the time.