*i love you all but pls I need advice*

So, I've been best friends with H for years and years. She's had boyfriends come and go, but she never changed and I always got to spend time with her.

She started dating a girl, S, 3 months ago (July). I thought this was all well and good, and I was happy she found someone as happy as my boyfriend makes me.

I understand, we are busy with work and our studies, but I haven't had one-on-one time alone with H since May probably. It's starting to upset me too.

I don't really like to leave my house, so I'm probably at fault, but every time I go to call her to see if she wants to hang, she's already made plans with S.

She's suddenly spending all her time with her, and now she won't even text me back for ages because she's with S.

Anyways, she started complaining last week about how she never sees me anymore and wants to catch up, so my brother invited her to his party tomorrow night. Now she tells me she's bringing S.

I didn't even really want her there since I have an early start at work the next day, and thought it'd be better to be with her alone, but I was planning to suck it up and appreciate it. I don't know what to do. I don't really like S, especially as they both came to my house high the first time S came over and H knows I'm 100% against drugs.

I don't know what to do, I don't wanna lose my best friend over some girl. I don't want S to come between us 😭