Hi Jennifer,
If your boyfriend used to touch and make love to you until recently, there was probably a recent disagreeable incident that occurred that has resulted in this switch in his behavior.
It would be best to have an open and honest conversation with him about what may be bothering him.
Listen to what he has to say without interruption. By the end of it, the both of you may be able to come up with solutions to remedy the issue. The sooner you have this conversation, the better.
If you keep waiting in the hopes that everything will just go back to normal soon, you may end up allowing this particular issue to fester and grow until it reaches the point where it simply can’t be fixed.