Someone who does not respect the boundaries and dynamics of relationships and families. Usually
will strike at a weak moment after a fight, and persuade your significant other that they should stay with them, and not go back to you.
They
will buy presents, take them out, pay for things, tell them what they want to hear.
There motives are selfish.
They
will try to steal your child(ren) along with your partner.
Sarah is such a homewrecker, she
totally swooped in when they were in a
fight, and convinced him to leave his
family for good.