Waiting for his response is killing me

My boyfriend and I have been together for almost a year now. Things have been pretty good between us. We have never fought or argued about anything, we have always talked about or much everything. That changed a couple weeks ago. He pretty much went completely silent on me. That lasted for 8 days. When he finally reached back out, he told me what was going on. Even though I was a bit upset about the whole thing, I tried to understand it. I didn’t really say much about it afterwards and just wanted to let it go and for us to just continue on. Our communication has been a bit sporadic lately but that is because he has alot going on and I understand that so I am not being pushy at all. He sent me a message this morning saying that he feels like he is letting me down, that he has just had a lot going on and that he doesn’t think it is fair to keep me on hold, that I should have to suffer. But here is the thing… I don’t feel like I am suffering. In fact I know that once things settle down for him we will be right back to normal. I told him this. I also told him that. The problem is that not I have started overthinking things like instead of taking his message for what it actually was, now I can’t help but think that maybe this was his way of trying to gently end things. I do not really think that is the case, I believe that he wants to work at it just without the extra pressure at the moment. I just can’t get rid of these stupid thoughts.