Guys, I need to find a new gym! :(

Story:

After a ~3-month break (injuries, uni-stuff, vacarion) I have started going to the gym again. Second time going again and my former gym buddy got there halfway throughout my workout. We had broken off our friendship on rather bad terms, so we both just ignored each other, until this happened:

Girl who also works there comes in to work out and I notice he says something to her on his way to the upstairs cardio area (First sign). Girl changes, put's her towel right next to where he put his workout accessories and goes upstairs for cardio (Second sign). They come back downstairs, she does deadlifts and between sets either looks at me or texts (pretty obvious from their reactions that they are texting with each other).

Like, if you need to talk bad about me behind my back, at least do it secrety for fucks sake! Pissed me right off.

I sent her a message on facebook later to let her know how it was quite funny they are friends now, since he had always said she was fat and arrogant (which he had done several times) and that I wished her good luck with that, along with a screenshot of a "conversation" between him and me from when we argued over what evetually made us go separate ways and the warning that this was, what she could expect from him, as there was an ugly charakter hidden behind that pretty face of his.

I really don't want to stay in the same gym, but at the same time I have no car and this is by far the closest gym to where I live :(

Another gym is supposed to open that would be roughly the same distance away, but it's really close to where he lives, so I'm afraid if I were to switch to that gym he could also switch and I might get the same problem again :(

Help me reddit!