Want to avoid Boyfriends roomate !

So my boyfriend lives an hour and a half away from me , so it’s kind of long distance..

We don’t see each other too often cause our schedules don’t match up , but we do talk every day .

When we don’t have a schedule conflict we try to hang and normally spend all day and night together ..

He was staying at his sisters house till he got a place with his cousin . So he used to stay over at my dorm when he was in town and that was fine till I got a new set of roommates.

My old roommates were literally never home and didn’t care , so it was fine with him coming in and out without me having to tell them that he’s coming . These new roommates how ever are always home , and are kind of rule followers( over night guests have to check in , and my roommates want to know in advance ) i myself find this rather awkward ( I am a very introverted person and keep to myself ) . So I don’t want to deal with that so I don’t have him stay over anymore .

Since he had gotten his own place with his cousin , I started taking the train there and just spending the night over there . I haven’t ran into his cousin yet.

But last time I was over as we were leaving she was apparently home and was spying out the window it was pretty funny to be honest .. i dont think she saw me see her .

This upcoming Thursday I am going to go up and see him again , and I really don’t want to run into his cousin( socially anxious , introverted person ) ..

So should I just build the confidence and later hate myself and go out of the way to introduce myself to her ?

Should I just avoid her ? And let her stay curious ? Should I ask him to introduce us ?

Ugh idk

—— Socially anxious

PS.

Btw we have to spend the night somewhere because since I have classes in the morning only afternoons are free and the train only runs till 9 o’clock at night .

PPs

I suck at telling stories and give too much details