Confront or Let it be

hi y'all so I was talking to a guy, I was really starting to like him. we hung out and we did have sex, but I initiated it. we never talked about it beforehand like he wanted to go on dates and stuff. so he seemed like a very nice guy. we had sex on Friday, and we texted on Saturday like normal and he never replied to me. so on Monday I texted him and he replied pretty fast and we were talking again like normal. he stopped replying to me that day and it's now I guess technically Thursday and still no text. I don't want to text him again because he already stopped replying to again. I wanna say something but at the same time I don't. what should I do? 

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