rumor of a romance (rumour)

rival, opponent, adversary...

vengeance, revenge, retaliation

vengeance, revenge, retaliation

bitter enemy

revenge, bitter enemy

non-fruit-bearing flower, sterile flower, something that is flashy with no content

to harm, to injure, to damage...

to do (someone) a wrong, to do (someone) an ill turn, to take revenge...

reprisal, revenge

one's rival in love

to backfire, to have a harmful result

to backfire, to have a harmful result

to do (someone) a wrong, to do (someone) an ill turn, to take revenge...

to do (someone) a wrong, to do (someone) an ill turn, to take revenge...

to do (someone) a wrong, to do (someone) an ill turn, to take revenge...

retaliation, revenge

mutual enemies

making light of, disregarding

to avenge (someone) by striking down their killer

to take revenge

to do (someone) a wrong, to do (someone) an ill turn, to take revenge...

business rival, professional jealousy

Pardon makes offenders

making light of, disregarding

to repay meanness with kindness

to hate the very sight of, to hold a grudge against, to treat like an enemy...

to return evil for good, to return a favour with spite (favor)

deep rivers move in silence; shallow brooks are noisy, those who know little talk much

to hit someone where they least expect it, to take revenge on someone in an unlikely place, to get revenge on someone in a different contest...