"Why" has been explained. The interview is for divorced and separated parents. When the custodial parent allows the non custodial parent to claim the child, the custodial parent stills get to claim EIC . You essentially told TT that you are the custodial parent.
You made a mistake. The only solution is for your gf to mail in a paper return. She can still claim full benefits.
Which is it, spouse or girl friend? There are even more different rules if this is a case of married people filing separate returns. Then nobody is allowed EIC!
