Was my cousin wrong for saying this to me about my crush?

Okay so one of my cousins on my dads side, she came in one day and I introduced my crush to her and his eyes lit up, and he was like, “Hiiiii”. Of course she said hi, grabbed her iPad and walked off.
Then he said, “Damn who was that? She’s hot!”
That made my blood boil. My crush is my neighbor and so cute. 6’5, and very kind and funny.
Then later that day I called her out and said, “Well well well, if it isn’t the crush stealer! Of course a short woman would grab attention.”
She said, “Excuse me?”
Me: You hear me! That’s my crush and you we’re trying to take him away from me!
Her: What are you talking about? I didn’t know he was your crush and besides, I just came in to grab my iPad. You act like you’re in middle school.
Me: Whatever. Why did he look at you so flirty than when he did with me?!
Her: Look it’s not my fault that he doesn’t find you attractive, so don’t put the blame on me when guys don’t find you attractive. Grow up.
I was hurt with her comment and left and cried in my room. Guys never find me attractive. I’m 6’0 and approximately 204lbs.
Of course a short woman would bring a man’s attention! My cousin is about 5’0” and slim.