Why does my mom act jealous/annoyed?

I’m an adult almost in my 30s.. whenever I strike up a convo with my mother she acts annoyed or jealous of me. Either rolls her eyes or just seems very uninterested in the convo. Especially when it’s around my step dad? I’m not understanding. she always acts anxious or annoyed when I try to have a convo with her and it’s always me being happy about something or excited. She doesn’t ever seem interested.

Oh yeah I will add that I take part in onlyfans (porn) and sell xxx content. (I’m 25....) she has once called me out on it... here is how the situation went..

She and my step dad were in the kitchen and she was hugging on him, I was visiting and had bought some alcohol for us to drink. My step dad goes “how did you get money” (because you know, the covid shit going on) and my mom instantly says “she flashed her titties on the internet”

Okay completely fucking inappropriate and it made me feel very awkward around my step dad which I already do anyway because well, he’s my step dad.

Wtf?