run hot and cold

dither fluctuate oscillate seesaw waffle waver

alternate change hedge hesitate hover pause reel rock stagger straddle sway swing

be indecisive be irresolute change mind fence-straddle hem and haw pussyfoot around shilly-shally whiffle yo-yo

remain stay

continue hold persist

dither falter fluctuate hedge hesitate oscillate pause quiver seesaw shake sway teeter tremble vacillate vary waffle wobble

change deliberate dilly-dally flicker halt palter reel stagger totter trim undulate wave weave yo-yo

be irresolute be unable to decide blow hot and cold hem and haw pussyfoot around whiffle

calm continue persist remain stay steady