> The obvious answer is no but I say those things because of how I feel, it makes me and my partner feel great and it provides assurance that I'm loyal to my partner.

Which is rational if you want stability and a partner in your life. And it's also evolutionary advantageous, as I said.

> I didn't realize articles are a limited resource we need to mindful of spending.

Not what I said. I will say, though, that I am mindful of how I spend my time and reading philosophical articles that are boring and too long for its message and don't provide me any interesting ideas are a waste of time.

> It's irrational because if you get called on your bluff in those examples you have to do something that is drastically costly to yourself beyond the point of doing it.

Risky doesn't mean irrational and you don't have to do only one thing if someone calls your bluff.

> If I tell you that I want your money or I'll blow you and I up, and then you say "You won't do it." I then have to blow myself up which isn't optimal as that means I'm dead and can't get money anymore.

Yeah, you won't. So why do you "have" to blow yourself up? It's your choice, no one is forcing you. If you blow yourself up then you won't have another chance to try again either.