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

School had been so busy lately we haven't had much time to talk, so my friend and I decided to make plans to catch up later this week. After making this plan with my friend, I told my boyfriend of four months and invited him to come with us. 

After I told him, he said he would be busy and couldn't come. When I suggested that we move the plans to another day this week, my boyfriend again said he was busy. 

At this point, I could tell my boyfriend was getting uncomfortable and I askds him flat out if he was uncomfortable with me meeting my friend. I told him to tell me truthfully and I wouldn't be offended with what he had to say. But he said no and didn't care that I hung out with my friend. Then he went on to say some passive things about how he didn't want to bother us and how he was sure we had a lot to catch up on.

I want my boyfriend to understand that my friend and I are just that, friends. I see my friend as a brother and he sees me as his sister. We've known each other for close to four years and have maintained our friendship and nothing more throughout. I don't know any other way to show my boyfriend this, without having us all hang out together and both of them getting to know each other. But my boyfriend isn't open to that suggestion. 

I really care for my boyfriend and don't ever want to do anything to hurt his feelings or make him feel insecure, but I also don't want to abandon my friends because my boyfriend isn't comfortable with them. I tried to start this conversation again with my boyfriend, but he keeps on saying there's nothing to talk about and he doesn't care. But obviously from his body language and tone he doesn't like the idea. 

Lastly, what is really getting to me is that he has girls sending him pictures daily on Snapchat of themselves and he has really good girl friends that he goes to lunch with. However, he hasn't even tried to introduce me to these girl friends.
<bot>: My boyfriend doesn't like the idea of me hanging out with my friend, but isn't open to meeting him to understand there's nothing there.