<human>: Can you provide a brief rundown of the text in within 3 sentences?

My boyfriend's been friends with this girl for almost four years. They made out twice a few years ago, but apparently nothing else physical has happened since. Currently, they also live together with some other housemates. She is a lot like me: physically and personality-wise. He and I started dating a little over a month ago. Today he told me that the two of them are going to NYC together for 4 days to see a concert as their last adventure together before they graduate.  

Anyway, most of his friends are female. He's always had trouble establishing male friendships because he grew up in all female household I guess. And he's told me how ex-girlfriend's disliking or inhibiting his friendship with this girl has really pissed him off in the past. I want to be as trusting as possible, but I'm scared and jealous. I already feel secondary to this girl. Like her opinion of me is paramount. And her presence in his life is much more solid and important than mine. But I know expressing that would put him on the defensive and cause him to dislike me. He told me, "We live together. It's not like I'm going to realize I love her on this trip." But. Like. Fuck. Am I overreacting? Is this weird?
<bot>: Should I be jealous/worried over my boyfriend planning a weekend getaway essentially with his close female friend only?