A partner in a personal relationship is not a family member
When you apply for a residence permit on the basis of a personal relationship or the intention to marry, the income of the partner in the personal relationship living in Finland is not taken into account because, according to the Finnish law, you are not considered to be family members. The funds necessary to fulfill the income requirement (1. adult/€1,000/month) must be freely available, for example through your own bank account.