hard feelings

bone hard

As hard as a bone, rock hard.

catch feelings

To suddenly begin to feel romantic attraction (towards).

cold hard cash

Money, regarded as an incentive that can override any doubts or ethical concerns.

die hard

Of a living being, to die only after a desperate struggle for life.

drive a hard bargain

To negotiate forcefully.

eat one's feelings

To turn to comfort food in order to deal with one's emotional problems.

give someone a hard time

To cause difficulty or make trouble for someone.

go hard with someone

To lead to someone suffering; to place someone in difficulty or danger.