Time really is healing most, if not all, wounds for Charlie Sheen and Denise Richards ... and he's now openly acknowledging she still loves him.

Charlie and Bill Maher covered everything from baseball to UFOs on Bill's pod, 'Club Random' ... but things got a little emotional when they went over the new Netflix documentary, "aka Charlie Sheen."

Bill recalled Denise "blubbering" as she described Charlie as being "not at all what people think" ... something Charlie appreciated. Getty

The former "Two and a Half Men" star admitted, "It was nice to hear that."

And when Bill suggested "she obviously still loves you," Charlie didn't disagree.

Bill added, "Love is eternal. Passion is often not." Getty

Charlie and Denise ended their famously tumultuous marriage in 2006 after

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