Straight men don't want to be my friend?

Every time a guy finds out I don't see them romantically they don't want to be friends and just cut me off? This is weird considering I've seen plenty of straight guys have girls as friends no problem. What's wrong with me that they can't have a friendship with me without the hopes of romantic relationship? Like seriously I can't date everyone and I do want some straight guy friends but I will admit gay guys are sooo much fun and some of my best friends. What's the difference between me and other girls that straight men don't see me in a friendship way?
Straight men don't want to be my friend?
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