I actually think after the Peter storyline, this could fit in nicely, or at least it could have if it was done properly.
Remember all the embarassment that Shelly went through after Peter? Well maybe this has led, in some ways, to her being more trusting to Charlie. She doesn't want that relationship to go wrong, to save herself from any further embarassment in front of her friends and family.
What do the rest of you think of that?
I also think the Charlie storyline will go on for quite a while, to probably May(ish) then conclude with a big explosion, maybe the Rovers (?), in which Charlie will die. And what are the chances of another Monday night with three episodes then? Or even an eight episode week?