With both of them currently at the top of their game we thought they would have a mutual understanding that because of their busy schedules, it would be a good idea to take things slow.
How wrong we were.
According to Star magazine, a source close to the 'We are Never Getting Back Together' songstress said that Taylor is besotted with the teen heartthrob and is already thinking about, wait for it, marriage.
The source revealed: "She's obsessed with Harry, she's already talking about marriage and babies."
Way to play it cool Taylor.
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Taylor is currently doing promo work in Australia while Harry Styles is off in the US with One Direction.
However, according to the insider, Taylor is planning meeting up with the One Direction singer over Christmas.
The source said: "She's planning a romantic Christmas vacation, just the two of them, she's gone off the rails."
Is anyone else starting to realise why Taylor goes through boyfriends quicker than she does hot dinners?
To her credit, Taylor did recently admit that she is quick to fall in love without thinking about the consequences.
She admitted: "I don't think there's an option for me to fall in love slowly, or at medium speed. I either do or I don't.
"I don't think it through, really, which is a good thing and a bad thing."
Perhaps proposing marriage to a man you've only just started dating is one of those things you SHOULD think through.
Just a thought.