Health Insurance as a Domestic Partner

I was recently added to by fiancé’s health insurance as a domestic partner.

 

My portion is deducted from his pay as well as his being taxed for his employers portion. I reimburse my fiancé both portions out of pocket each month. 

 

My own employer office HI, but the cost is more than double what I reimburse to my fiancée.

 

Can I claim this as a post tax deduction?