Boyfriend getting distant

My boyfriend lives in another state than me. We’ve only been seeing each other for a few months now. He got weird and stopped calling as much. We went from talking at least twice a day on the phone to most days not at all. He doesn’t seem like he really wants to text. I called him out on it and he says he’s just been stressed and he’s going through some stuff. I respected that I just told him to not push me into the dark and that I was there for him and he has my support however he may want it. He said he didn’t mean too and told me everything but he still doesn’t change how he’s texting and never calls. Is he just falling out of the feelings?