I believe someone in a blog post I read some time back said that "Jean Grey isn't a girl that does things, but that has things happen to and around her." She needs to become more independent (no, the entire Phoenix thing does not since it is something out of her control that is leading her, rather than being led by her) and avoid relationships for a while. It's okay to have tension, but when she's in a relationship with Scott and there's tension with Logan and things keep bouncing back and forth, it really gets stale and undermines the potential she has. It becomes a contest between Cyclops and Logan that showcases them more than her, and that's a disservice to the character.
I'd like to see Jean without hanging around a man for a while. I want to see her on her own, or just with a team (perhaps even leading?), making big decisions for herself and her life. I doubt Marvel or any body writing for her will do this. They'll probably rehash the same bland cosmic powered Phoenix story once more. *sigh*