BTT, you are clearly a victim of your own success.
Alex is, for several of us, somewhere on the rarefied stratus with girls like Jaye, Nicole (from Sunshine Love), Maya and Josie and very few others.
Yet, you expect us to fall as deeply and as strongly for Isa. Because she's as amazing and as relevant, blah, blah. Well, it may happen. Isa is quite interesting, quite engaging, beauty isn't even the point here.
What you did with Alex, was the creation of a believable and delicious female character. Not a flawless goddess, based on our inner 13 year olds fantasies, but someone out of the left field that surprised us with charm and awkwardness. She's not perfect and that's exactly why we care so much.
I, for one, want to see what you can do with Isa, she's, like I said, quite interesting. I really want to get to know her.
Peace