Actress Alexis Bledel and her boyfriend, former co-star Milo Ventimiglia, have ended their relationship.

The couple were together for three and a half years before calling it quits. Ventimiglia's representative tells American publication People, "He is currently single."

The pair fell in love on the set of hit US TV series Gilmore Girls. Ventimiglia, who turns 29 on Saturday, joined the show in 2001 as bad boy Jess, and became the boyfriend of his real life partner's character, Rory.

The actor will play Rocky Balboa Jr in the upcoming Rocky sequel.