My boyfriend said don't send me any messages or messages and don't call me too late. He said he was busy and tired of investing. What does that mean?

Don't jump to the conclusion that he doesn't care about you or anything else. When such a thing happens, you should wait for him to come back from work calmly. You are discussing this problem. If he is really busy at work, he can still be forgiven. If he is still cold at home, you should pay more attention to his usual contact with other people. Don't guess and doubt at random. When two people are together, they should trust and support each other.