Form 8962

Unmarried couple with 2 children. For tax purposes, she claims one child I claim the other. I claim Head of household status. Listed both kids but 1 is classified as not a dependent.

For insurance purposes, policy is purchased through the state program. I enrolled both kids and myself and she enrolled herself. 1095A received for me lists the 3 of us. Her 1095A lists just her. 

When I look at my form 8962 it only lists 2 in the tax family. And it computes that I need to repay some of the advanced discount. I am assuming it is because the program has listed only 2 in the tax family. Shouldn't this be 3? Do I need to change this to 3? If so how do I do that?