I don't want to name our first son after his dad, his father and grandfather.

We recently found out we were having a boy and as much as I wanted to be excited, it dawned on me that my husband and I still hadn't agreed on baby boy names and instead of being a wonderful thing for parents to share, it's been very stressful. He is addament to name his first son Rafael the V. Rafael is a unique name but we call his grandpa Papafael, his dad Rafael and my hubby Rafa. I don't look forward to calling my son Rafi or Raf. When we first started dating 8 years ago he actually told me that he always wanted a 4th and at that time I didn't even know if I wanted kids. I have suggested so many boy names and even tried to compromise that Rafael can be a middle name but no...he only wants his name. I don't want to resent my hubby 5 years down the road. What do you ladies think I should do?