10/13/2010 AT 5:05 PM ET
Too much information – and way too soon.
“I went on Howard Stern yesterday to provide clarity and honesty about what I’m experiencing,” Arquette, 39, explains on his Twitter page Wednesday. “But while doing that I shared too much. It’s alright for me to be honest about my own feelings but in retrospect some of the information I provided involved others and for that I am sorry and humbled.”