I understand what everyone is going through here. Me being a naturally insecure person and then having someone in the past cheated on me and then left me for someone else, it is very hard to get over it.
But, it's true; The past is the past, and we must move on! I have faith on everyone in this board who has suffered/is suffering from retroactive jealousy to overcome it and be happy. I mean, think about it; Being jealous of someone else does make you feel misreable on the inside, doesn't it? Who wants to be sad? Certaintly not me.
Thank the Lord I have found a very wonderful, honest, compassionate boy and we have been together for 9 months and counting. I know, it seems a bit short and we are just kids, but jealousy happens alot in every relationships, and it needs to be recognized and terminate.
Just think of it this way; You know in your heart when someone really does love you. If you don't feel it in your heart (or gut), then either you're right or you need a helping hand out of this feeling of jealousy.