How do people get dickheads drinking alcohol?

Like, I only feel love. Every time I’m drunk it feels like xtc, and I’ve been regularly drinking for 7 years now. I’ve also done xtc. I just wanna love and hug people and tell them how much I appreciate them. All my anxiety is gone for a while and I don’t care about shit. I just don’t get how people can be dickheads or annoying on alcohol?