Guys, Do I need to be overthinking this?

I’ve been seeing this guys for months (almost a year now, he has called and introduced me as his girlfriend multiple times) and he recently told me last time we hung out that he’s super stressed about work and ever since that hang out we havnt really been talking and he will randomly RNR my messages. Which is very out of the ordinary for us since we usually will talk all the time. I don’t know what to think of this situation since I’ve never been in this before. I’m not sure if I should be thinking he’s stressed and maybe wants space or if he just doesn’t want to see me anymore

Guys, Do I need to be overthinking this?
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