Does anyone else play completely differently when one regular sits at the table?

I noticed something weird about my own game.

There are a few regs I run into all the time online.

Most opponents are just screen names.

But every now and then I see a name and immediately think:

"Oh great, this guy again."

What's funny is I probably start overthinking spots against them and end up playing worse than normal.

Meanwhile against random players I feel completely relaxed.

Anyone else have a regular they seem to battle every single week?