Don’t know what to do

i and my boyfriend have been dating for about a year and half now and we were friends for about 4 years. We had uos and downs but now he doesn’t acknowledge me. He has his buddy all the time hanging out. It’s like I don’t even exist. We were really good as friends but now I don’t know what to do. He doesn’t even kiss me now let alone having sex. It feels like i have to initiate the conversations and if I don’t he doesn’t even bother texting me. Help !!! I really love him but I don’t know he loves me anymore. At the beginning of our relationship he was always with me and all touchy and lovely. But now it’s all another story?