Out for dinner with someone I've been talking to for the past 2 weeks. If I tell people about it, it won't happen

Here's the cycle:

1. I meet a new person every couple months. Hit it off really well.
2. Get excited and tell a few close people about it.
3. Put my best foot forward. Don't behave "weird" or clingy. Make them feel at ease during first meal out.
4. Something comes up, or they soon lose disinterest before a second meeting happens.
5. After endlessly speculating what I did "wrong", I try and improve myself further for next few months. Weights, diet, social skills etc.

Cycle repeats. I feel like the universe works against me for being presumptive or overconfident enough to tell people that I've met someone.

Like Dr Strange said to Iron Man- "If I tell you what happens, it won't happen."

So I've not told anyone. It's safer that way before "the curse" kicks in.