In the case of jealousy, I consider it halfway toward abuse. The force has been initiated in the mind- and without great care, it will be initiated for real very soon.
If you are jealous, you need to end the relationship that you are jealous about. Actually, you should just accept that the relationship is already over if you are jealous.
If there is no real reason for your jealousy, then you are being an idiot who is driving away that which you are jealously guarding. You are addicted and it is hurting you, and probably will hurt the other person too.
And if there is a reason to be jealous it's probably because the relationship is not a good one, it is not fulfilling needs, and you both need to just get out. Jealousy is the sign it is over. It is the final bell. Don't be a moron and keep pretending the game is still on.