Does anyone realize that Max is not Melanies' brother after all?

I mean with Mel being adopted and Carly being her bilogical mother Max is not her brother after all. So the only family she's ever really cared about and been good to was never her family to begin with. I hope they make that a part of the story and because of the kind of life Melanie has lived along with the fact about Max not being her brother, she really sticks it to Carly. I really can't stand Carly now and I want her to get what's coming to her. And she doesn't deserve a daughter to allow her to be raised by someone like Trent who pimped her out. I'm ready for her to get it and get out.