Rosie O'Donnell Receives Get-Well Message ... from Donald Trump?!!

10:11 AM PT -- Rosie JUST RESPONDED IN A FRIENDLY MANNER!!! Writing back ...

"well thank u donald - i must admit ur post was a bit of a shock ... r u trying to kill me ? xx"

If these two can kiss and make up, maybe there's hope for Israel and Iran?

File this under "Things That Are Less Likely to Happen than Hell Freezing Over" ... Donald Trump just sent Rosie O'Donnell a get-well message. Seriously.

Trump -- who has habitually trashed Rosie as a "degenerate," a "pig," and a "loser" over the years -- learned his arch-enemy suffered a heart attack earlier this month and today he responded by sending her the following message on Twitter:

"Rosie, get better fast. I'm starting to miss you!"

So, is this an official olive branch? An end to the war? Or was Trump just being sarcastic?

Discuss. Here's some old footage of Trump bashing Rosie to help you along.