Partners - on my own

So all my friends have partners or are talking to someone and I have never had a partner and have never talked to anyone I just keep getting the feeling that no one wants me. I like this boy but it will never happen, he’s my boy best friend and he’s sorta talking to my other friend who completely fucked him over at one point. So people like that can have partners and I’m on my own. 1. How do I get over the guy and 2. How do I get a guy? Thanks for the answers if I get any😊