Is it odd my cousin keeps making plans with my bf's group of friends?

My cousin just got out of a 4 year relationship. She isn’t distraught because it hasn’t been working out for a few months and I have talked to her about it. Anyways, she doesn’t have any friends so she mostly hangs out with me and my sister sometimes.

I understand how lonely it can be sometimes so I invited her to hang with my boyfriend and his big group of friends. They’re a fun bunch. She’s only met them a couple times and now constantly tries to make plans with them as if they’re her good buddies and kind of expects me and my boyfriend to show up because she is not too close to them. It’s like “Why are you doing this, what if me and my bf want to have a date night of our own?”

She just met them twice and plans this big whole thing with his friends without telling me or my bf. I mean, I figured if we had something planned we’d invite her. I feel in a way she’s intruding. It’s been like this every weekend now where she just constantly wants us to do something together and I try hint to her we’re having our “alone” time which she understands but she keeps suggesting “Tell them to make plans please?” or “Tell them to do something this weekend!”

Then she’ll call me about 4x a day to keep asking about the plans to make sure it hasn’t changed.

Also, she always wants to ride with me and my bf because she doesn’t like riding alone in the car.

I don’t think it’s a big deal for her to hang out with us, I just think it’s odd that she keeps making plans for us to hang out with his friends when she barely knows them. Am I being inconsiderate? I don’t want to hurt her feelings.