9/16 songs are haylor songs. either directly about him like style or talking about their relationship like this love, ootw, ayhtdws etc.
the first secret message is "we began our story in new york."
october 30, 2014: taylor talks about her and harry developing a really close friendship

october 30, 2014: one direction played a game with yahoo, taylor gets mentioned.
game: "louis tomlinson got papped snogging taylor swift"
harry: "i mean, you could've told me"
liam: "a random sequence of events led to something special."
harry: "i mean, you could've told me"
liam: "a random sequence of events led to something special."
harry can't keep a smile off his face when her name gets mentioned
october 31, 2014: taylor talks about style with ryan seacrest, ryan teases her about it.
november 4, 2014: harry tweets this aerobics dance routine which went viral that week for having 'shake it off' fit well with the dance, he tweeted the orignial dance without shake it off playing. slick.
november 5, 2014: a fan asks harry if he had listened to 1989, he answers "it's good isn't it?"
november 7, 2014: taylor talks about an "on & off" relationship that always comes back, and that person will be the person who'd interrupt her wedding.
november 9, 2014: harry gets asked about taylor writing about him, he defends and praises her and calls himself "lucky"
november 17, 2014: harry is asked about out of the woods, he defends taylor again and says he has been in some.
also a video taylor posted on instagram of the concert *now deleted* harry was seen in the background
november 22, 2014: ellen asks harry if he sent 1989 flowers to taylor, he responds to this
harry says "shake it off" is a great song in a red carpet interview
taylor was seen dancing along to "night changes"
harry supposedly took a picture of her performance, flash on
harry stands up and was the first to clap when she won the ama award of excellence
he whistled for her when she finished her speech
you can hear his whistle in the official video of her speech
taylor does a "mini after party" at her los angeles place, harry stayed behind in LA as for the rest of 1d left for australia.
and niall said in an interview harry stayed behind and went to a "little afterparty"

december 2, 2014: harry & taylor party together at the vsfs afterparty in london, matheus mazzafera posts alessandra ambrosio (one of my fav models) holding pizza and mentioning partying along harry, taylor & ariana until 4am!
pictures of them at the after party with the same crowd, if you notice the guy left to harry is the same guy next to taylor on the right

december, 2014: taylor wears her yellow scarf while hanging out with kendall and cara delevingne, which is the exact same one she wore during the haylor central park date.
december 14, 2014: niall sings out of the woods during a fan m&g
*somewhere around 2014* taylor introduces steal my girl on the radio
clothes they may've shared clothes together throughout this whole timeline, they've shared necklaces, rings...
harry yelled "don't worry we're on good terms" at the fans who were there (we as in him & taylor)^^

later that night harry tweets about the rom-com "serendipity", which is about two exes who are reunited by faith. (implying on seeing taylor that night)
january 16, 2015: lily alridge (taylors bff) posts this on instagram, fans notice a haylor polaroid on the top <3
(you can see harrys arm next to taylor, his mermaid tattoo is showing)
also the clip harry supposedly filmed is featured, the video had many hidden stuff, things i could've missed out on
february 27, 2015: rumors spread about taylor and calvin hanging out again, possibly dating, and harry posts this picture on instagram captions "my winding wheel"
he indirected that song to taylor firstly back in 2013 the day of her birthday about being each others "soulmates."
may 6, 2015: taylors speech before i wish you would: "then both of them are lonely, and both of them are wishing that the other had just said to them 'i'm sorry, come back i miss you"
harrys reaction when taylor passed them

you can also hear the photographers screaming "taylor" at second 4
this is an angle of where she passed them, she went straight to the carpet with all her girlfriends.
harrys on stage, facing taylor and calvin harris kissing.
taylor looks back at harry during take me to church
harry leaves vegas and goes back to LA, on his own. while taylor, calvin, niall, ed and louis all party together.