He told the papers he was so drunk during the assault that he doesn't recall much about it.
But he says he remembers the victim screaming.
Prosecutors say Lafrem followed the woman into a bathroom after she resisted his advances on the dance floor and broke her nose, jaw and eye socket and fractured her skull.
He is charged with attempted murder and attempted rape.
The 30-year-old metal worker said he knows he "made a mistake" and has to pay for it.