3some?

Dr
The guy i'm talking to says he thinks it would be awesome to have a 3some with two girls (me being one of them obviously). Is it wrong that I hate the idea? And I think he should hate the idea too! Why would he want another girl to have sex with? Im enough for him, I hate the fact that he wants to add in another girl!! I think it's rude and a little disrespectful to me. Am I wrong? Is it just normal for a guy to think this way? Because I find it rude. I'm not dissing anyone who has had a 3some.. I'm just curious because he "loves me" so why would he want another chick to have sex with....?