<human>: Give me a shortened version of the text

I'm his first real girlfriend, and I know he's going to take breaking up extremely hard. I don't know how to let him down gently without making him angry and possibly causing him to fly off the handle. I also don't want to lose all of our mutual friends.

How do I tell him that I'm just not into the long distance thing? I really need to focus on school right now (I'm a third year biochemistry major) and I don't want to be pulled into a long term relationship at my age. I want to date, I want to meet people! I'm still practically a kid, I don't want to get bogged down in some three-year relationship with someone I don't really love.

But he's crazy about me. He's never been treated like I treat him (just being a good girlfriend, honestly) and he's so thrilled, I don't know how to tell him "Yeah, you're great, but I'm ready to move on." He'd marry me if he could, he's that crazy for me.

Plus, I have about zero friends. I'm always in the lab, so I never interact with anyone my own age. I don't want to end up with no one to talk to, it would make me depressed as hell.

What should I do?
<bot>: College boyfriend is in love with me, how do I tell him I'm not that into it without him freaking out?