Exercising the no contact rule is the best option in aiding you to move on. Some people exercise silence; not sending/calling or responding to the texts or calls, otherwise known as "the cold shoulder" as a means of ending a relationship. That is what your boyfriend is trying to accomplish by being 'distant.'
You can hold on the hope he will be mature to break up with you but for how long?
The following is a tactic I used in two different situations when my girlfriends exercised cold shoulder. I stopped communicating with them for a month. In any case, it was a waste of time as they did not bother or find the need to reply to my texts. After a month, I texted them with the question of whether the relationship was over or not. They replied on the same day I sent the text that the relationship said was over, and they were seeing another man.
After a month of not communicating with your ex, ask him if he wants to break up with you then he should say so because that is what you feel and you will accept that decision. Another thing, if during the no-contact period he does not converse with you then he does not want to break up with you in a mature manner. He wants you to know what his silence implies.
While you might ask him now whether he is thinking of breaking up with you, the probability of getting a Yes answer is difficult. Wait after a month of not communicating with him because he does not want to talk to you why bother to talk back to him. The no-contact period will assist you in gaining the strength which will enable you to move on.