How can I stop being jealous/envious of my other girls’ banging bodies?

All my life I’ve been chunky. I have NEVER been at a healthy weight and I have never been the ones that turn heads. Only guys that like me that I don’t want. Anyways I’m a heavyset woman right? I was a fat teenager and I always got ignored by guys. Guys that I was interested in. I’ve always always jealous of women with fit or slim bodies. Even thick women with amazing bodies! I have struggled with weight all my life and I ALWAYS failed. My weight was always in the 200s since I was 11. Plus I’m 5’8. I am currently working out but my belly and thighs are so difficult to lose. Like inches. My best is GORGEOUS! Slim body, 5’5, long red hair, green eyes and she is fit and toned! She doesn’t workout but she goes on hikes and she looks amazing! It isn’t fair that I have to work harder than she does. My legs and knees are HUGE.
She always turned heads and I am ignored. I had a huge crush on this guy but my heart sank when he rejected me and likes my friend. I feel like ending my friendship with her because I’m sick and tired of being pushed to the said and ignored. I have dropped three attractive girl pals for the same reason. I’m done being the sidekick and the second choice! They all have attractive boyfriends.
My 210lbs self will never get a date. I’m surprised that my best friend is insecure about her slim body and wish she had a bigger ass, hips and thighs like me. She’s crazy! I’m done dating. My guy friend (also a chubby tall big guy) says I don’t need to have a banging body to be beautiful and I look so much better and more beautiful that my friends. Is he BLIND?
He told me I won’t be successful with dating around attractive women. I’m too blind to see that a guy (him) likes me for me. I’ve rejected him so many times. He isn’t my type. Guys I find attractive always have girlfriend or married. How can I stop being jealous? Men won’t give me the time of day. I am jealous of attractive couples! Why can’t I have that?

Updates
9 mo
Why did I have to be pudgy or fat growing up? My guy friend has asked me out NUMEROUS times and asked me to the school dances in prom program 10-20 times! I went with him once but that was it. My high school crush broke my heart and humiliated me during high school senior prom.
How can I stop being jealous/envious of my other girls’ banging bodies?
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