HELP!!!

So... my boyfriend and I have been dating for almost two years now and I feel like he’s getting tired of me. Our conversations are getting dry and sometimes he goes on his phone and sees my messages and doesn’t respond til hours later. I’ve tried getting him in the mood, but he always says later or another day. He told me that he does get annoyed of me some days and I guess I get that. He said that he’s annoyed cuz his best friend just wants to hangout with his gf and I think that’s cute and it kind of upsets me that he wouldn’t want to hangout with me whenever he can or that he doesn’t want to talk to me when he has a minute. Am I being stupid?