"it's becoming a lot"?

I'm in a "situationship" and last week he said "I'm overwhelmed, I think I should take a step back" after we had what I'd consider the best night we've ever had of everything... I asked what he means and he said " It's becoming a lot" not sure what any of this means lol... a few weeks ago he told me he has feelings and that he likes me and this came out of no where... I've asked if we are "done" but he won't officially say that we are done and hasn't deleted me off snap chat either... so is this a "break" technically? So confusing and I also work with him so we see eachother daily and I sit close by.
"it's becoming a lot"?
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