cool off

verbs

become quiet or calm, especially after a state of agitation
"After the fight both men need to cool off."; "It took a while after the baby was born for things to settle down again."
calm, calm down, chill out, cool it, cool off, settle down, simmer down
lose intensity
"His enthusiasm cooled considerably"
cool, cool down, cool off
feel less enamoured of something or somebody
cool off
is a type of (narrower)
undergo an emotional sensation or be in a particular state of mind
"She felt resentful"; "He felt regret"
experience, feel