Why is he distant after we hang out/not texting anymore?

Anonymous
I've been seeing this guy for about a month. I met him online----his profile said he was looking for a serious relationship. He travels a lot for work so sometimes he is gone for weeks at a time. We've gone out about 4 times, talk on the phone/text a few times a week. Things were going great until a few days ago when he stayed over for the first time----I told him openly I liked him. He smiled and laughed a little bit but didn't say it back. I joked with him and said so I guess you like me too? and he said yes. I texted him when he left that I had fun and I liked learning more about him. Well I haven't heard back---and he has never not texted me back. I'm giving him space for him to respond----what is in his head? Also he never tells me his schedule in advance (we don't make long term plans). He pretty much just tells me hey I'm off work do you want to hang out? But we don't make plans that far ahead of time. He says he's a planner so I don't get it. Thanks!
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Any guys have any opinions on this?
Why is he distant after we hang out/not texting anymore?
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