Proctor broken his silence on the incident via the Courier Mail.
"I am embarrassed with regards to my actions," Proctor said.
"I would like to thank the Titans for their understanding and acknowledging my personal situation.
"I wish Justin (Holbrook, Titans coach) and my teammates all the very best for the rest of the year.
"I would like to thank owners Daryl Kelly and Rebecca Frizelle for their support over the years and all the Titans fans."
Proctor's manager Chris Orr also told the Mail Proctor had been battling off-field issues, including the breakdown of his marriage and his mother's cancer diagnosis.
"Kevin is dealing with some difficult issues surrounding the breakdown of his marriage and ongoing injuries," Orr said.
"He will take this time to recover and refocus on possible opportunities overseas."
The Titans released a statement to announce Proctor's exit from the club on Monday.
"The Gold Coast Titans have sanctioned Kevin Proctor after being made aware of an incident during yesterday's round 19 fixture against the Bulldogs," the statement read.
"Proctor has also been released from his commitments with the Club for the remainder of the year and will not return to train or play with the squad.
"His actions were in breach of both NRL and Stadium regulations."
Proctor has been a controversial player in his career, having been fined $20,000 in 2017 after CCTV footage emerged of the star allegedly buying cocaine outside a Canberra nightclub.
He was also sent off and banned for four matches in 2020 for biting then Sharks halfback Shaun Johnson.
Proctor has also played 22 test matches for New Zealand.