Sad news and all that, but as it was never properly confirmed he even had a girlfriend we're not really sure what to think.
We reported back in October that there was speculation that Niall was dating drama student Amy after they were spotting in a bit of a PDA at X Factor rehearsals.
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However, the news was never actually confirmed by Niall or Amy.
But whatever the truth was, one thing is for sure now - Niall Horan is very much cluttering the singles market again as of today.
News which makes us want to do THIS:
Niall continues to look for love... Copyright [Wenn]
A source told the Sunday Mirror newspaper: "Sadly, it is over between Niall and Amy. He finished it because he didn't have enough time with everything he has to do.
"Understandably she was disappointed because she had been in a relationship before she started seeing Niall and chose him over her boyfriend.
"But there are no real hard feelings and they're still close."
Speaking outside her family's north London home, Amy said: "I don't know what I should or shouldn't say. Sorry."
We just hope Harry Styles is up for being a trusty wing man, we reckon they would make excellent partners in pulling.