Actor Sebastian Stan has fuelled reports he's been dumped by GOSSIP GIRL co-star Leighton Meester after taking his mother as his date to a recent red carpet event in New York.
The couple was alleged to have parted ways earlier this month (Apr10) after two years of dating.
A source told OK! magazine, "Leighton called it quits because she doesn't know how to be in a relationship and doesn't really like them. Sebastian is heartbroken by Leighton's decision to end the relationship."
The stars have yet to officially comment on the status of their relationship, but Meester was no where to be seen at the American Museum of Natural History's Spring Safari event last week (ends16Apr10), when Stan was accompanied by his mum.