Why are some women always trying to ruin there ex new relationship?

Some people are just naturally vindictive, be it weakness of their self-will to get over what isn't there's anymore, or just the pure pleasure of ruining what they can no longer have, or ruining what broke their heart. If it ended because of her, then it's out of ruining what she can't have anymore cause she screwed it up..and can't stand someone else doin it much better. If it ended cause of him, then it's most likely out of vengeance, he did this to me, so eat this PUNK! It works both ways, dudes are like that too..."i'm a kill whoever it is you seein judy, i'm serious, if i can't have you NO ONE CAN!" sound familiar? Eeeyah, regardless it's stupid, ignorant, and immature...but as they say love will make you do crazy stuff....handle it with full thought and care.

Because they have a poor self-identity and poor personal boundaries. They are addicted to drama and causing mayhem. The ex should severely limit contact with the woman and verbally re-direct her when she crosses the line. The only thing that people with poor boundaries understand are negative consequences to their behavior...

Jealousy

Because now they see how happy they are now and can not stand it, they do not want them to be happy with anyone but them. I am going through the same thing, what ever you do do not let her no it up sets you, she will just love that.

true love make them feel insecure even if they r not in the relationship with that person and guy too do the same

becuse some women are miserable and misery loves company