<human>: Could you distill the essence of the text into 1-3 sentences?

I've (M24) been dating this girl (F24) for about three months now, I really enjoy being with her but she is a little physically abusive and can be demanding but its all mostly rough playing. She would randomly ask or state 'Anatomi, why are you short?' or 'you're small', I really didn't care about it in the beginning but now its getting to me that my height matters in this relationship. I'm 5'8' and shes 5'2', maybe her ex's were all taller than me or i'm not her ideal height. I never cared about my height as a guy and felt confident about with it but now when I'm around other guys I'm very conscious about height comparisons. Should I confront her about this and if she's not happy with it, tell her to accept it or end this relationship and find the 'ideal' guy?
<bot>: Girlfriend thinks I'm short (i'm 5'8' and she's 5'2') and I'm getting very conscious about it, should I confront her and tell her to accept it or end the relationship?