London, Jan 31 Hollywood star Bradley Cooper and model Irina Shayk have reportedly split after nine months of dating. The pair started dating in April 2015, and appeared to be happier than ever with reports they were even considering moving in together.But it has now been claimed that Cooper, 41, decided to end his relationship with 30-year-old Shayk following a series of clashes between her and his mother Gloria over the festive period, reported Daily Mirror. (ALSO READ: John Krasinski would love an ‘Office’ reunion)

“Irina thought things were going brilliantly with Bradley and is very upset they ended this way. The pair had been getting on really well, but things went south over the Christmas period,” a source said.
“They spent Christmas together in Los Angeles but arguments started, mainly centering around the fact Irina and Bradley’s mum weren’t getting on very well.” According to the insider, Shayk and Gloria got on when she first started dating Cooper. However, following their rows, Cooper is said to have sided with his mother, with whom he is incredibly close.