WATCH: Travis Scott caught grabbing Kylie's derrière
Sources have told the publication that Kylie and Travis hit their first rough patch during Kylie Jenner's lavish birthday yacht party in Europe.
Back in March, Kylie Jenner and Travis hit another snag in their relationship, when the Keeping Up With The Kardashian's star accused her rapper boyfriend of cheating.
According to another report made by TMZ, Travis had postponed his AstroWorld concert in Buffalo to stay in L.A. to deal with Kylie's accusations.
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Scott's rep claims the rapper denied all cheating allegations, however, the publication has been told that he flew back from the East Coast to surprise Kylie and their daughter Stormi.
They were home all evening when Kylie claims to have discovered "evidence" that he cheated on her.
A large argument between the pair quickly followed.
This is a developing story.