My boyfriend said he was going on a business trip, and then he never contacted me again. He didn't reply to my message, nor did he reply to me. What happened? You can call, but no one answers.

Things like this need to be analyzed from two aspects.

For example, you two just belong to the girlfriend relationship in the network and never know each other's family situation.

Moreover, he asked you for money before, and now he suddenly disappeared, indicating that you were cheated by the other party, because this routine is very common, and the news media also reported that many people can't find each other after being cheated, and there is no way to recover the lost money.

Of course, it is also possible that you two know each other very well, so when the other person is on a business trip, it is indeed possible that he went to a remote place or he went to do a task. During the mission, he was not allowed to answer the phone and cut off contact with the outside world. For example, he belongs to the person who writes test papers, so he can only work in a closed environment.