Came to this strip late but I agree with the general tone. Lila didn't do Drew any favors and this will all come to a head at some point in the future. I've lost a bit of the tiny respect I had for Lila.
I think drew knows in her heart that Lila wouldn't hit on her fiancee and that Tad was the cad, so to speak. She just doesn't want to give up her fairy tale story for something like reality.......For all the morals and sensibilities Drew is supposed to represent, she is quite the hypocrite....