At least the cat cares about you.

Leave. Take the cat with you and head home with your new best friend.

Yuss, that's a good idea #2, it kind of feels like you've done that before though. Have you? 0,o

Why not just talk to her about it. I mean come on this is just common sense.

They probably will talk about it once she comes out of her room.

She shouldn't have to tell her friend that its rude to ignore her like that, especially after she drove all that way to see her. That's just common sense.

You don't deserve to be treated like that, especially after you drive 4 hours to spend time with her. If I were you, I would leave and not look back.

I usually hate watching YouTube videos with cats. I have to sit there, listening about all the inaccurate portrayals of felines in media. "Oh, a real cat would never be this grumpy all the time! Oh, the pupil dilation of the kitten isn't blah blah blah!" Just let me watch the video in peace, cats!

She's probably doing something important, if she's your best friend don't worry about it.

She doesn't appreciate you or you time OP, maybe it's time move onto someone new.

Why didn't you just go in your friends room and bug her until she got the message that she was being rude? If you're close enough that you would drive 4 hours to see her then I don't see why you'd passively sit in the other room while she ignored you.

Take the cat and run

I would make myself at home, get in my pjs, and make a sandwich. if this is your best friend, you're going to hear about the conversation later.