She gets it through the state. Ally has had two very major surgeries. She's also on some shamefully expensive medications, including one that would cost tens of thousands of dollars on Justin's insurance. It's covered on her state insurance, although they had to fight for it.
Honestly, given America's out-of-control health care system, I'm not going to blame anyone with a chronic, possibly deadly condition for doing what they have to do to survive. I think there's a huge difference between weaseling $40 bucks a month from people to buy yourself $20 smoothies, and postponing a wedding to keep the bride alive.