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Hey,

I'm so sorry that this boy is saying things like that about you. I can't say for sure why he is saying these things, but it sounds like he's trying to get a reaction out of you. I wouldn't confront him about it, because then he'd be getting the reaction he wants. If he brings it up to your friends, your friends can tell him that it's not appropriate for him to be talking about that with them and then walk away.

I know that you don't want people to think of you badly, but not everyone will like you. It's not right that he's talking badly about you, but he won't be the only one in life who doesn't like you, and he probably won't be the only one who says negative things. People like to gossip. I know it feels easier said than done, but try and ignore them. Don't be rude or disrespectful to them. As the saying goes, "kill them with kindness." There's a chance they'll get bored if they don't get the reaction they want.

Focus on the people in life who are there for you and treat you well. You said you know that it isn't true that you're weird and have no friends. That means you know that there are people who care. Those are the people who matter in your life. Join clubs and social groups to meet other people who you can have in your life, because those are people you'll have something in common with. The people who think of you in a positive way will outnumber the people who think of you negatively. Remind yourself of all of the good qualities you have. Those are what matter.

I hope you feel better soon!