Does a guy like you if he always answers your phone calls?

Ok I like this guy and I think he likes me. Everytime I call he always answers the phone, maybe on the first ring or whenever but he always answers the phone. I rarely ever get to his voicemail and if he does get a missed call he always calls me back. I’m just confused tho because sometimes when I call we only talk for a maybe a few seconds or mostly 5 minutes max and sometimes an hour depends on him. Today I called him and of course he answered but he told me he was mad so he would call me back.I could tell he was kind of irritated but it sounded like he just woke up.my question for the guys is does he like me? I mean if he liked me wouldn’t he have still wanted to talk to me? or is he just not in the mood to talk right now? if he didn’t like me wouldn’t he not answer my phone calls? but even when he doesn’t have time to talk or he isn’t in the mood he always answers the phone and tells me he can’t talk right now and he’ll call me back so does he like me if he’s doing this? so I’m just curious