My bf is..... 😱

My bf is being very distant. It's going to sound crazy but it kind of started after his "friend" Joclyn came back to town. He claims she's like his "sister" but I dunno? I got good morning and goodnight texts everyday, I've had to send them recently, normally he's super nice and always wants to talk, lately he's been a ass and was rude for things I didn't even do and barley wants to reply or talk to me. It's sketchy bc he will sleep at 8-10 or so o'clock (sometimes later) and claims he won't wake up till 9 or so but I don't get a text or text back till 4-5pm.... idk it just feels like he's pushing me out idk what to do? Do I ask him about it?