<human>: Can you condense the text into a few key points?

I have been seeing this guy for 2 months.  At first we made it clear that we wanted to date- as in if an opportunity arises, neither of us will be hurt. Well, we spend almost all of our time together.  I stay at his house almost every night.  He treats me really well. We have a great time together. BUT- there's this girl who he says he is just friends with, that wants to take him to a wedding and a sporting event. I have met a lot of his friends- both men & women. I have never met her. He has already stated he doesn't want to go to the wedding, but feels like he should do her a favor.  He has been honest about everything. My issue is that if he goes to either or both events and something happens I will freak out.  Not because I do not want him to be happy- if another person does it for him, then by all means, he should not waste time with me. I will freak out because I don't think when you spend the kind of time we have been spending together that he should see other people at this point. There is another issue, I am the 1st girl he has dated since splitting with his ex-wife.  So I am nervous.  I need advice on how to broach this subject without seeming insane.  I guess I have not felt this feeling for someone in a long time and I just don't know how to act.
<bot>: Guy I have been seeing (2 months almost everyday) is planning on going out with another woman. I need help telling him it bothers me and I don't know how to bring it up.