Waylander the Slayer
Explorer
Maybe you should ask them?
In my opinion, the problem is that they KNOW from the very start which is which. I mean, they should not know which NPC is "cool", which is not. They should be on their toes all of the time.
So my question to the experienced DMs and players is: Why? What makes a NPC likeable? And are your players as unfriendly as mine?
I think this is the critical point from your post. My best guess is that your players are reading you, the DM, like a book. They can tell within seconds which NPC's are important to you and they enjoy messing with your head.However, from the first moment on, the players HATE this NPC.
So it´s like that quite often: I introduce a cool new NPC into the game. Often a funny guy or a really interesting character. Someone with a lot of thought behind, meant to give an exciting twist to the game or just to be the nice one that the player characters can depend on in the future.
However, from the first moment on, the players HATE this NPC. I don´t know why and it really seems random at times, but they don´t get along with the NPC at all. He/she treats them nice, gives them presents or helps them with important information. They take everything without giving thanks, turn around and call him an ass.
On the contrary, the players often love some random NPC that I just make up on the way, invite him/her to dinner and bar mitzvah or even gain a love interest.
So my question to the experienced DMs and players is: Why? What makes a NPC likeable? And are your players as unfriendly as mine?
Cheers,
Rob.