Me and my partner met in college and in our group of friends there was one girl who I did not like from day 1. I do not like her personality, her aura and the energy she gives out. My partner on the other hand considers her to be one of his close friends. Whilst I do not mind them being friends (and have never asked him to stop talking to her) I do not want to be involved in family activities or any other events that concern me (Christmas Parties, Birthdays etc)
My partner is now claiming that I am being completely unreasonably and that I should get over it.
How can I explain to him I do not want her in my life.