How to deal with coming back to work knowing your coworkers all tried to lie on you and get you in trouble with HR ?

It’s a too long of a story to really type out but basically I got into an argument with a coworker after confronting them about always being rude and micro aggressive towards me and I only really did it because im starting a new job at the end of the month and ready to let bye gones be bye gones after dealing with everyone’s bs there for almost 3 years. I was suspended with pay but not fired but I found out some others I work with directly told HR lies about how im “mean” and “difficult to work with” when im nothing but kind to them. How do I hold my composure knowing I’ll have to work with all these snakes for a few more weeks or should I just quit now since I have something lined up ?