I think it takes some strength on your part to face and admit the jealousy you’ve been having for so long. The feelings are there and it’s good to work through them. I think it’s probably pretty normal to feel jealous at times. I can’t imagine there’s anybody who doesn’t. It does complicate things when we act on our jealousy though. I have done it and felt guilt and regret. Looking back though, you might find that the friendship just wasn’t a good fit for you and it was best to move on. Facebook has changed the dynamics of friendships I think. Even when we outgrow a friendship or want to move on, they’re still on our social media.