If you are worried or have any concerns, it is a good option to contact your boyfriend and ask him about his situation. This shows that you care and value him, and can also help you communicate and solve problems better.

You can try sending a short message, such as "Hello, how are you doing?" to open channels of communication. If he doesn't reply or has a cold attitude, don't be too anxious, because it may be just a temporary emotional problem or other reasons. In this case, you can wait a little longer, try to contact him again, and give him some time and space to deal with his own affairs.

On the other hand, if he doesn’t contact you but posts frequently on social media, it may also mean that he may be busy or have other reasons for not being able to contact you. However, if you still feel uneasy, you can express your feelings directly to him and ask him if he has any questions or if he needs help.

In summary, it is important to maintain open and honest communication in any situation.