NY Non-resident SE Health Insurance Allocation

Hello - I am filing jointly with my wife for the 2019 season for the first time (we got married in June). My wife has a schedule C business that earns 100% of its income from NY, and we are CT residents. When completing the IT-203 nonresident return, Turbotax asks me to allocate my wife's self-employed health insurance premiums as either NY or non-NY. Prior to getting married, my wife obtained her health insurance through the CT State exchange. So while 100% of her schedule C income is NY-sourced, I am unsure about deducting her SE premiums on the NY allocation. I appreciate any advice!