What should I do if I have assumed someone is being sexist to me?
What is this person doing that causes you to feel they are being sexist?
Yes, there are signs of it. They ask me if I am feminine or masculine all of the time.
I understand how you feel. No one should question your sexual identity. Let them know how you feel and that you would appreciate if they would stop asking.
They don't care about my feelings. I'm going to kick their ass for being so close minded.
Questioning your sexual identity is wrong and it's not any of the person's business. Be assertive and let the individual know that they should mind their own business.