Why don’t guys ever have a crush on me that much?

I don’t understand, I have a kind heart, beautiful inside and out (even though I’m fat), helpful, funny and a crazy goofball, but I haven’t had a boyfriend since high school.
I know I’m not the ideal size of a girl. I’m tall at 5’10, plus size and chubby/curvy. I’ve always been a big girl, never that slim girl. I’m at least 220lbs and a size 18W. A lot of people say I don’t look fat and I carry the weight so well so I don’t need to lose weight. Um yes I do! My doctor said I need to be under 200lbs and I'm trying to get it 160 but my doctor said I should aim for 180 or 185 because of my large wide bone structure. Plus I’m black.
My boyfriend from senior year in high cheated on me with a petite girl. We dated from September 2016 to July 2017. I haven’t had a boyfriend since. I’ve had dates but they never work. I can’t get a third date. I’ve went on two with this guy last year but it didn’t work out. Before my ex boyfriend guys rejected me or put me in the friendzone. Who came up with that dump work “friendzone”? One guy that I had a huge crush on bluntly told me he would go out with me if I got my weight under control because he’ll break his back if he carried my fat ass. Wow…..

My guy friend who is my best friend said any guy that doesn’t like me for me is an idiot and I don’t need to be petite, thin or a hot girl to be beautiful and I’m perfect the way I am. He’s white but he’s a sweetheart.

I know he’s just saying that because he’s my best friend but he said he means it. I know he’s asked me to school dances and prom twice but junior year I went with him but as friends. I rejected him but we ended up going together with our other friends.
There’s this man in college that I really like but he doesn’t notice me. He looks 6’7 I’ve talked to him a few times before but I keep seeing this girl he’s always hanging with. She’s skinny and petite size. People said he’s has a huge crush on her.

Why don’t guys ever have a crush on me that much?
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