HOW WOULD THE JOKER PROPOSE TO HARLEY QUINN?
Actually, in the comics based directly on the Batman TAS cartoon, the Joker DID propose to Harley, in a lame goofy way. Turns out he found a note saying she was going to inherit a fortune, so he was going to marry her & then kill her, but Poison Ivy saved Harley, & Harley being the forgiving lovable moron she is, forgave the Joker (like she always does) & got mad at Ivy instead. Don’t count on anything happening between the two of them. The Joker & Harley split in early 2007 & she’s with Ivy again. Sure, she’d run back to him at the drop of a hat. He’s tried to kill her many times. But the Joker she fell in love with has evolved, & the new him scares even her.