Is my friend to bossy and controling and asking to much of me?

Me and my friend have been close for 14 years but extra close in the last three years, we both got divorced and we leaned on each other for support, friendship and someone to do things with. we had a pretty regular routine of things we did. Now I have met a really great man and she is so upset, because the routine has been upset, we invite her to do things with us, at first she would go and then complain she had a horrible time, now she wont go. She is constantly trying to keep me away from him and uses guilt trips like, he has changed you, you are clouded by him. she is constantly asking me when she is getting her friend back, she says she guess she will just have to wait till the relationship breaks off. i tell her lets make plans to do something, but she wants me to stay out all night and not have any contact with him till the next day. I personally think that is a wrong way to start a relationship, I'd like to keep trust in tact. He is a great guy all of my other friends love him and think we are good together. It to me seems like she is jealous of our relationship and doesn't want me to have it, because she doesn't. she wont even talk to him now, when we run into to her somewhere, if she does she says rude things to him, or tells him things i have told her about him, hoping to start trouble. but it doesn't because he sees what she is trying to do. He is starting to feel like she will go to any means to break us up. she asks when we run into her why we didn't sit with her, honestly we just dont want to, she is so negative to him and whispers in my ear about how bad i treat her now. yes, things have changed, the time we spend together. that's all and I keep trying to spend time with her. but she is driving a wedge between her and i and not him and I. He is starting to get concerned that she will get to me and convince me to break it off with him. I have tried to reassure him that isn't going to happen. I just don't know how to tell my friend this is driving me crazy.