This is another reason why I'm hot and cold on Morrison. To me, Jean/Scott is as close as a OTP as you can get in the 616 outside of Sue/Reed, they've been together that long. And aside from the fact that every 100 issues or so they had Jean and Wolverine in a life-threatening situation where they went "OMG, the world's ending, let's make out", in the end it was back to Jean/Scott. Once Marvel made the decision to bring Jean back, turn Madeline all evil and clone-y and then with much ballyhoo marry Jean and Scott off they should have run with it.
But no, Morrison had Ms. Fake British Accent with the best body "money can buy" who used to torture X-Men but is now "good" play mind games with Scott (and she still does IMO) and because writers make him an idiot he goes along with it. I can't stand Emma/Scott because it such an obviously manipulative relationship even when Morrison and Whedon and Fraction hit us over the head with how cool Cyclops has become because of her, what a leader he is now, how much she truly wuvs him. I still call BS. If the Scott/Emma relationship was so healthy she have had to look like Jean to have mental sex with him and she wouldn't have to know almost his every waking thought (as she brags of doing). Jean never had to play with Scott's mind to get him to love her. The whole point of killing Jean (again) was to further E/S, not to mention using future Jean pushing Scott mentally to make out/get with Emma over her grave. Yuck.
As bad as the Ultimate Marvel universe got, the beginning of the Scott/Jean relationship there worked. Within the first 5 issues of the series you had the 19 year old Jean suddenly become attracted to newcomer Wolverine and sleep with him (instead of all the UST the 616 Jean/Logan had). When she finds out he planned on betraying Xavier she literally mind-throws him out of bed and that's the end of their fling - for good. She spends the next 15 issues waiting for Scott to make a move (she knows he wants to) and in the end she does it herself. After Wolverine tries to secretly kill Scott on a mission so he can have Jean to himself, she tells Logan that because he tried to kill the man she loved if he ever so much has a romantic/sexual thought about her ever again she will know and she blink him out of existence. Now that is the Jean the 616 writers should have paired with Cyclops.