As human why do we like to feed our delusions so much. You put someone on a negative expectation so bad when the person didn’t do what you envisioned. You start looking for ways for them to fall into that trap, you start trying to catch them when they did nothing. Any little mistake from them, it gives you amour/fuel to find fault where it is not needed, you seek for negativity by force just to feed your negative instinct which eventually ruin things.