Relationship Advice??

My boyfriend and I have been together for almost 3 years, we act like bffs all the time. But recently he

1. Takes FOREVER to answer (but is in quarantine all day)

2. Never wants to facetime anymore

3. And yes we act like bffs but he has stopped being sweet to me for way before the quarantine started.

So idk what to do. I've trued talking to him but he said he's sorry but wont change it, he never has an excuse for when i ask he's like "i took a nap" or "i didnt see it" or sometimes doesn't even respond to that. Idk what to do I love him but he is different. Or am i being dramatic?? He thinks I am but idk anymore