Bad experience

I had the most worst experience there to be honest I use to work for them and he had a issue with me, I stood up for myself against him cause I wasn’t going to allow him to walk all over me anyways

Yesterday I went there as a ex employee bare in mind I stopped working for them 2 years if not mistaken Hassan (GM) comes to me tells me I’m not welcomed there,I’m not a employee but a customer how do you do such so each and everything he has a issue against someone he won’t allow a person into the restaurant

How do they employ someone that gets to bring in his personal issues to work