Help.

A guy I’ve been talking to for other a month (good morning texts, constant chat) has recently been a bit funny. He broke his phone (genuinely dropped it down the stairs at work) and messaged me and said sorry he was going to get a new one the next day and was using his old one. Few days later he didn’t open my message for over 26 hours despite viewing my snap story, I swallowed my pride and messaged a simple Hey. He replied and chat resumed as normal however i feel that something has changed, slower replies but the content of he chat hasn’t changed. What should I do about this? I’m super attracted to him and he’s been pursuing my for a while and i finally gave him a chance. Is he bored or just busy?