I am a chubby 15 year old girl who is unattractive. I did not get invited to my crush's birthday and I am heartbroken :(

So for context, I am a 15 year old who is chubby/really chubby. I am unattractive, however I don't care because I am happy. I like to do sports and I have a lot of hobbies. I don't have a lot of close friends sadly, but I have a few and I am happy. My crush invited a few people from our class to his birthday party. I know I am not unattractive for a 5 but I feel like I am a 0. I am still really chubby. I really really really really really wanted to get invited. I have a crush on him since forever. I know he would never really go for a girl like me and our likes are not similar. I just wanted to know what it feels like to be wanted and invited for once. A chubby girl like me will never be invited to parties and whatever. I am still in middle school, what's going to happen in high school? I just feel like I don't have a lot of friends. My house and my weight really often holds me back. I am trying to lose weight but I feel like I always fail at everything I do.