Should I not reply for a couple days?

I was talking and going out on dates with this guy for about a month. He told me he really liked me and loved hanging with me and we had a really good time together. He left for vacation and it’s been about 2 weeks. Since he’s been gone he’s barely reached out. I texted him saying that I found it crazy he hasn’t reached out once since we had sex before he left. He apologized and said that he’s sorry if it seemed that way and it’s not his intention at all and he really likes me. I answered and each text we sent each other it took him about a day to send a message back. After I told him that I found it rude he was not texting me. He says he’s busy but how busy can you be to not reply for a full day. He sent me a text a couple days ago saying he’s thinking about me a lot but he’s just really busy. I answered and said hope everything Is going well see you when ur back maybe :)) he answers 2 days later and said I might buy a factory here !! ( like where he is ) and didn’t say anything else. I’m hurt because I had sex with him before he left and now he barely answers. I wouldn’t have done that if he didn’t make it seem like he really liked me but that’s what he did and now it’s different since he’s been gone. I wanna see him when he gets back do you guys think he will reach out. And I’m planning on not answering his text for a couple days because I honestly don’t wanna have a convo with him that’s 2 days apart each time. What do you guys think I should do?
Should I not reply for a couple days?
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