What should i do?

What should I do about this guy?
So I walked in a fashion show the other day and there were alotta male models there. This one male model who always stares at me at shows came up to me and started talking to me. I checked my email and somehow he got it....

Now hes sending me stuff for events and calling me babe, and all that! I have a very serious boyfriend and I am not looking. But I am overly nice to everyone, so I always respond to his emails because I don;t want to cause akwardness between us at shows! Especially since he has a girlfriend who is a model in our shows as well! I don't mind talking to him but his emails keep getting more flirty. Another thing I am a year under the legal age and he is in his mid 20's. I look a lot older than I am , so I don't think he knows. Should I just tell this guy in a round about way, randomly, how old I am? Maybe he will chill out with the emails if he knows lol

I highly doubt that will work is what you might wanna do is bring your boyfriend into the conversation he will probably make some comment about your boyfriend not being important then just simply state well to me he is and im happy and you should be happy with your girl or another thing you might wanna do is just set up a double date which he might refuseoverall just mention your boyfriend a lot and the fact that him calling you babe is making you feel uncomfortable talking to him.