Different kind of jealousy...HELP

Hi ladies! I️ want to know if it’s not just me or if this is “normal”. My man has been watching porn lately and for some reason I️ get this pure rage and jealousy when he’s watching it cause I️ feel like he’s more turned on by those girls than by me sometimes, or that their just way hotter and better looking than I️ am. Is this totally normal, has anyone else felt like this!!!? I️ honestly don’t know how to get rid of this jealousy feeling...HELP!!!!!