For those of you with iphones?

I've been talking to this guy who claims to really really like me for about a month now. We text all day long and everything's always fine but then I'll send a message and it randomly won't say "delivered" underneath. Sometimes I try sending it as a text message but I still don't get an answer. Then hours later he'll text me again. He usually thinks I never answered or he'll say something like "you're a sleepy head" cause he thinks I fell asleep. I have trust issues so I'm not sure what to believe. I don't think I'm blocked because it would still say delivered. But is there something else he could be doing? Or should I just believe that his phone is messed up like he says?

I think your looking into it to deep there's always a chance he could be doing something but if you don't trust him then let it go

Just send him a screenshot showing him what your phone showed and ask if he can help figure out what happened