pick apart

captain's pick

A decision made by a leader without consulting others.

come apart at the seams

Synonym of fall apart.

drift apart

To lose contact, to lose one's friendship or closeness.

fall apart

To be emotionally in crisis.

grow apart

To gradually become estranged.

have a bone to pick

To have a complaint or grievance (with somebody); to have a contentious issue to discuss.

pick at

To touch, grab, handle, or pull tentatively or gingerly, using a utensil or one's fingers.

pick corners

To choose a preference (as in predicting which boxer will win a match).