Not an imaginary story! Not a dream!
The Bride of Mxyzptlk!
Supergirl and Mon-El’s Super-date!
Why can’t Supergirl’s sister celebrate Valentine’s Day?
Winn’s groovy alien girlfriend!
The Martian love-message!
For better and worse, this belated Valentine’s episode played very much like a Silver Age Special. Pity Mxyzptlk wasn’t as whimsical as his Silver Age counterpart.
Very entertaining, and every bit the Silver Age Special you described. They made only as much sense as they had to, but they didn’t let that get in the way of the fun.