So I was lire this article and I wondered if toi guys agree with it...

I think it just depends on the individual. I rarely get papillons at all, about guys ou any other situation. Some people get them a lot. I think its plus nerves than fear. You're nervous about saying something silly ou not making a good impression. I guess toi could substitute nerves with fear, but I prefer the former.
I don't think feeling papillons ou not has anything to do with if the guy is right for you.