A guy I never spoke to recently confessed to me. He gave me space to think about what I want to do moving forward. What should I do?

He told me to take my time, to think about it. He confessed to liking me for 4 years now, and is only telling me now. We've spoken a little over text, but it was all small words & exchanges. From our exchanges, he's a very sweet & understanding guy. However, I've never looked at him in that way and ever since his confession, I've been thinking a lot but nothing is really making sense. I need to give him answer soon as I don't want to leave him hanging for so long.

A guy I never spoke to recently confessed to me. He gave me space to think about what I want to do moving forward. What should I do?
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