Is it normal my cousin called me gay even though i think she likes me?

My cousin is a model and actress, not a famous one but she makes enough money doing television shows. But she also has a big ego, she thinks that because she's a celebrity or whatever that everyone in my family should always bow down to her and respect her. To be honest, she is only two years older than me, and I always had a crush on her growing up, though I didn't see her that often. Recently we had a family get together and she was inside the house, it was late at night and me and my younger brother (he's 15) were getting ready for bed because we were going to share a bed in one of the bedrooms, and my cousin surprised me by coming into the room out of nowhere and touched my belly and teased me by saying that I was getting "chubby".

She then asked me in a joking tone of voice if I was gay, I think she was just testing my reaction, also her face was smiling in a teasing way like she enjoyed pushing my buttons, but she knows that I'm a virgin and never had a girlfriend. I have shamefully touched myself thinking about my cousin in the past. It turned me on a lot that she did this to me, because she enjoys being in a position of power and control and she loves to manipulate people. And she knows that I am afraid and intimidated of her.

Another incident happened a few years ago when I was sitting by myself on a couch and she came up behind me and punched my arm and then giggled. Me and her used to have a lot of physical fights as a kid because I even thought she was attractive back then I wanted to have any excuse to be around her, and she obviously remembered our childhood memories. She even told her mother that she intends to never get married and stay a bachelorette enjoying the single party life. I don't drink and she invited me to attend one of her celebrity parties a few times and I said no because of my social anxiety and nervousness.

I also remember another time that she and me were walking down a dark street late at night after our family had dinner together at a restaurant and it was a cold evening so everyone was waiting inside and she volunteered to find our car in the parking lot and requested me to come because she "needed a guy to help her" (her words). We were all alone in the parking lot and she put her arm around my shoulder and told me that I could get a girlfriend if I was confident and just put myself out there. She has said that I was good looking to her friends and even to our other family members in front of me on numerous occasions. She has even tried feeding me many times.

I don't know what she wants, she is really pretty and has an amazing social life and even makes a lot more money than I will ever make. I feel like a complete loser compared to her, but she keeps sending me signals like she wants me and is interested. I don't know what to do or how to act around her anymore. I am 25 and she is 27.