Send help

Currently sitting in class. After about 10 minutes, the teacher finally showed up. Never seen him before, and I already don't like him. He smells.
Anyways, onto the topic at hand. Recently I've reachieved getting a girlfriend. She's really pretty. But a thing happened and it's since put her in a bad mood.
The thing was I admitted randomly that I wanted to be more masculine. Not too much, just enough to appear genderfluid.
She didn't seem to like it coz it sounded like it was a secret or something. I don't tell people because I'm scared of how they react, and sometimes I feel like it doesn't matter. I appear as what I appear as.
I'm scared she doesn't accept it. We only just recently got back together. We were apart because my mental health is oof.
Any tips guys, even though not many people read these anymore, and those who do don't care?

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