Notes

A girl who entered a chatting room out of depression/anger/problems in her life, and wanted to chat about them with any stranger, then she got to know a guy through this chat room, they'll keep talking using nicknames, then they'll start to exchange mails, and get closer, and after a while, he tells her that he is christian, he didn't hide it but their religions weren't that important at first at all, until they develop some love feelings to each other. I still couldn't imagine the end, maybe that will be just the end.. maybe u can suggest something..
that's the first treatment, another treatment can be that from the beginning she'll know he's christian, there'll be no love story in the first place, they'll just be a very close friends through the internet, but I can't find a plot, neither an end, it'll be so static, if u imagine something for that treatment.. go ahead

There's another idea a sub-idea from that one, which is a girl who likes a boy and stalks him and at the end of the movie she realizes he's christian XD

There is the idea I suggested before, about the fate, when the girl wake up late and couldn't attend the very important presentation then we view a series of events that show that If the girl woke up on time, she would have died. (like the movie the curious case of benjamin button fate scene)

There is the idea of the girl who sees a ghost of her dead lover, which keeps helping her in problems or accidents, and he won't disappear until she is happy again somehow...I don't have a clear treatment for this.

There is another idea it's similar to the previous one, it's about a girl but a child one (if we can have a girl 9-11 years old) she has an imaginary friend but he is a youngman, she is the only one who can see him, but she is having her 10th birthday (or whatever number we choose), and it's time for him to leave her because she is no longer a child, then the girl is a youngwoman now, having her work/college life and he is with another child but he meets her, he recognizes her though, but she doesn't see him that time, another time in another location she will be sitting alone after breaking up with her stupid boyfriend and then she'll see him she will think she's hellucinating, because he told her that once he disappears, she will never remember him, but guess what she still remembers him....I don't know how to finish this actually.....it was a novel in the matter of fact...I'm sorry for wasting your time .. forget about it.