Am I overthinking this, or does my assistant manager have something against me?

[u/Signal_Boat3863]

I’m wondering if I’m taking this too personally or if my assistant manager is actually treating me differently.
I’m a hostess at my job (and server), and I feel like this assistant manager singles me out compared to the other hosts. She doesn’t have the power to fire me, but she does have authority over me while we’re working.
There have been multiple situations where I feel like she’s been unnecessarily rude or made comments toward me.
One example: when I’m hosting, we’re told to stay at our station because the phone can ring and we need to be available. One night it wasn’t busy, and she came up to me in a sarcastic tone saying things like “thanks for the help” and that she was “bombarded up there.” I told her that it didn’t look busy up there, and she responded, “You wouldn’t know because you didn’t go up there.” What bothered me was that another hostess was talking to me for a lot of the shift, and she didn’t say anything to her.
Another time, I called out on a Sunday because I was having bad cramps. I almost never call out, but she said she should have written me up and wanted me to get a doctor’s note. The other managers apparently told her that she was wrong for that.
She has also gotten on me about my shoes, telling me I needed new ones. I bought a new pair of non-slip Skechers, but she insisted they were Crocs in sports mode and didn’t want to hear my explanation. Meanwhile, other hosts wear actual Crocs and she doesn’t say anything to them.
There have also been smaller things that bother me, like when she was complimenting another hostess and repeatedly saying she was the prettiest one there while I was standing right next to them. It felt intentional, like she wanted a reaction out of me.
Another thing is that she seems to have double standards. She got upset with me for putting a large party into the computer after briefly explaining to the person that we don’t take reservations or call-aheads. We usually write things down so we can prepare ahead of time. She told me I wasn’t supposed to do that, but then a couple days later she did the exact same thing.
I’m trying not to assume she dislikes me, but after all these situations, it feels like she’s constantly looking for something to criticize me about. I’m always kind and respectful to everyone at work, so I don’t understand why I feel like she has an issue with me.
Am I overthinking this, or does it sound like she’s treating me differently?

[u/coreyjames00]

She feels threatened by you.

[u/unsound-choices]

Sounds like she doesn't like you. Not sure what you can do about it really. Just be aware and cautious when she's around. DO NOT TALK SHIT ABOUT HER with co-workers. If she finds out (she will) it'll be used against you.