"Louis and Eleanor split up two weeks ago," the rep tells Billboard. "They have not announced this as they wanted some privacy during this time."
A friend of Tomlinson says the 23-year-old singer is struggling with the breakup. "They tried really hard to make it work but it was just impossible, he's away for nine months a year and they just grew apart," his friend told People.
The couple had been dating since 2011. Tomlinson has not mentioned the breakup on social media.
As previously reported, Malik will take some time away from the group to recuperate from stress, according to a rep. It hasn't been confirmed when he will re-join the band, but it's been reported he may take the stage with 1D on March 28 in South Africa.