The Blue singer told the Daily Star Sunday newspaper: “I know I’ve let people down. Being arrested and ending up in a cell was the biggest wake-up call to me.
“It made me realise there is a problem I can’t keep ignoring. I need to do something about it.”
It was confirmed on April 12 that Lee – who was also found with a controlled substance in his possession – will be going to rehab to help him overcome his personal issues.
He added: “Me going to rehab isn’t a cop-out. I still take full responsibility for the way I’ve behaved.
“There is nobody to blame but myself and I’m deeply ashamed of what has happened.
“I am doing this because I have finally admitted I need help. I want to stop hurting the people around me.”
Lee’s Blue band mate Simon Webbe offered his support by tweeting: “On the outside you see one thing but deep down your sinking!”@ LeeRyanMusic WE WILL GET THROUGH THIS OUR FANS KNOW YOU! Stay strong brother.”