I would love to say that tomorrow he will change his mind, but it seems that his mind is made up. You have a chance to fix this as evidenced by being intimate and being on good terms. You may have to wait this out. The good thing is that he isn't saying it's over and that he doesn't want to consider it, he is just asking for time. He may have the personality that doesn't deal well with a lot of stress at one time and by pushing he may want to give up. By allowing this time you have a chance to be taken seriously and a willingness to focus on the relationship. He has identified his stressors and they in his mind come first. Of course you should too but his mind doesn't seem to comprehend that or want to consider it. It is up to you but you can't change his decision.
If this has been helpful press accept