to never go back on one's decision no matter what

to decide to do something: to do something on purpose / to perform a maneuver, to carry out a tactical action / to decide on an opinion: to believe in an opinion firmly

lever

to stir, shake, shift, swing / (as of a machine or device) to operate, run, go, work / (as of a person or group) to work, go into action / (emotionally) to be moved, touched, influenced

to move

(obsolete) to move

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

(idiomatic) to make up one’s mind, to decide