Workplace Ostracism? Confrontation?

Hi all,

I work part time in a small restaurant, there is about 15 of us all up. We’re a pretty tight knit team, and up until a few months ago, everything was fine. However, it seems as though my manager has flipped a switch. He has become incredibly short and snappy with me, barely talks to me, and has become extremely tough on my (very few) mistakes. I have watched his interactions with other people, and everything is completely normal. Everyone else treats me the same, but he almost seems like he can’t wait for me to leave. I have asked several people if I have done anything to hurt or annoy him, and everyone has said they have noticed the change in attitude, but do not know why it’s happened. I’m not sure I entirely believe this, but have no evidence to say otherwise.

It is clear that I must have done or said something a few months ago to upset him. I have been racking my brain trying to figure it out, and I can’t. It’s concerning to me that I did something to warrant this change in behaviour, and that I don’t have the capacity to self reflect and find what I have done wrong by myself.

I want to ask him directly, but I don’t know how to navigate the confrontation that may arise. On one hand, I desperately want to clear the air. On the other hand, I have a strong feeling that I’m going to get unleashed on. And to be honest, I’m too much of a coward to listen to that sort of resentment being spilled. I also don’t want gossip to spread around, and I don’t want to do anything to disrupt the overall harmony of the place. Alternatively, I could submit a resignation and simply move on. I’m unsure of what to do, or how to do it. Any advice would be greatly appreciated!

Edit: To give some further clarification, I’ll go into more detail about his behaviour. It is common for us to have shots before we start a busy shift. I have noticed that the shots are now one glass short, and he sends me away to do something else while he and the rest of the team have shots. I have asked him questions about things in quiet times, and while before he would give me an in-depth and thorough answer, he ignores me now. I have also noticed a pattern whereby he contacts me to take me off a shift, and often that very same night, the entire staff goes out after work for a few hours. He is the one that often offers to take the staff out.
I have observed that when there is no choice but to have me on for that night (i.e. its busy), they do not go out, and I have not been invited by him or anyone else on any other night.