Most Helpful Guy
It's totally okay for you to want your boyfriend to not flirt with other girls.
You have to tell him that you have a problem with it though. If he doesn't know you don't like it (and he doesn't unless you've *told* him) then you have no right to get mad.0THIS IS NOT RELEVANT ANYMORE
Most Helpful Girl
It just seems odd. He's with you, why flirt with other girls? It seems disrespectful to me. I don't think you are being irrational or possessive at all. If anything it seems pretty natural to be bothered a bit by the behaviour.
I would talk to him. Some people are definitely more flirty, but he also needs to respect your feelings.1THIS IS NOT RELEVANT ANYMORE