animosity
animus
bad blood

Bad blood between the two of us is not good.

Perhaps our history of bad blood played a small role.

As a matter of fact, I did know there was bad blood between you.

I wanted no bad blood between members of this group.

The two came into the fight with a good amount of bad blood between them.

And if his bad blood made them stop the treatment, so much the better.

The only thing I could say about the boy is that he have a little bad blood.

She only have a little bad blood, that is all.

Bad blood between the two former friends was said to have developed there.

If there was bad blood in her she didn't get it from him.