That mean's a lot! Initially, Harry Styles- BUT- I had always wanted it to be Niall, and I have alternate endings' planned but i've just had no time but there you go that's the answer! hope it's the one you wanted.
Because honestly, if you reread it (as i did after writing it) you can't help but just think Niall would be the one (hypothetically speaking because i actually have no idea) to give the girl up for the sake of friendship, but meh- i don't know.
big love, darling x