George Clooney, co-founder of ''Not On Our Watch' and one of the world's most committed shy bachelors is single again.

Just weeks after his now ex-girlfriend Elisabetta Canalis announced that she would be a bride someday, it may have got the same commitment jitters back in Clooney and he announced the end of his relationship with her.

In a joint statement, Clooney came out with same line which he has used so many times now, we are not together anymore. it is very difficult and very personal and hope everyone can respect our privacy.

After a failed marriage to Talia Balsam in 1994, Clooney had vowed never to remarry again. From then on he has had a steady line up of girlfriends including Courtney Cox, Renee Zellweger and most recently supermodel and presenter Lisa Snowdon.

His notoriously anti-commitment ways, however, don't get in the way of him getting a new girl who eventually leaves after a while.