There was another thread on this episode awhile back:
http://forums.thetechnodrome.com/showthread.php?t=33820
I also fell for Irma's joke, "is there a single man there? No, I mean not married!" Then of course despite knowing the turtles by this point, she still feels disenchanted by their appearance despite saving April.
Who needs Shredder in love? This could pass as "Rocksteady in love"!