Blake Lively just got 3 more years protection from an obsessed fan, who allegedly claimed he had a "metaphysical" connection with the actress -- because a judge extended Blake's restraining order today.
TMZ broke the story ... Blake obtained a temporary restraining order against Sergei Mifle last month -- claiming the guy made repeated contact with Blake's mom, begging to help Blake because she was troubled.
According to Blake, Sergei was spotted lurking around the set of "Gossip Girl" -- insisting he was there to help Blake "heal."
The judge extended the protective order today in L.A. -- requiring Sergei to stay at least 100 yards away from Blake and her mom for the next three years.