What do you mean, I texted him and he didn't answer?

Can be answered from multiple angles, first, he is really busy; Second, I didn't see it; Third, he may not want to reply, even if you send a lot of messages, he will reply to one. Better call to confirm. If he doesn't answer, he may be busy or didn't see it. After seeing it, he will explain to you why he didn't see it. If you answer, ask him why he doesn't answer.