Is he cheating ?

My boyfriend goes out at 1 am, 2am, 4am, 12 am to houses at all hours of the night. He doesn’t drive either so why tf u leaving at these hours. He literally always drunk and at a pool parties with half naked girls, then he stood me up for his friend house where all the parties are at. And this morning i realized he took me out of his Instagram bio and archived our pictures 😕. We used to FaceTime everynight and day and now he won’t answer. He doesn’t text me good morning or goodnight or I love you anymore unless I say it first. He told me he doesn’t want to have sex with me anymore. I’m starting to feel like he’s not there anymore.