What if you made it where David has cancer but has to hide it from everyone, but then Liza finds out and helps him keep it a secret, and by then they are dating but they play it smooth so nobody figures out, David also should be able to take chemotherapy but has a panic attack so now Liza and David are stressed because of health issues, Corina has to have her baby after David takes chemo for a while, he also has to become weak from his chemotherapy, because that is what chemotherapy does to people