It's almost mandatory to have a work bestie/work spouse. Your real-life better half and(or) best friends would not get the jokes, the complaints, everything else that comes the job better than a work bestie/ work spouse.
I can honestly say my work bestie is one of the main reasons I haven't quit my job yet. We keep each other motivated and it helps having someone to talk to who doesn't make me think I'm crazy for reacting the way I do to some work situations, especially with colleagues. Now, we don't hang out outside of the office because it's strictly a work relationship, but I appreciate them dearly.
My work best friend is my school leader and coach. So at times it’s good and sometimes not so great! For example I got covid Xmas break. And I found out she pressured me to get a rapid test, even though my PCR test said I’m still positive, so i could return sooner to work. But overall she’s a good bestie.