Hi Amy, I also went through a similar situation before my ex completely want me out of his life.

We had some petty arguments but unlike the past where we would work it out, he wanted a break. His reason was that he needs to find himself and his purpose in life, but promised me that when everything is settled, he’d come back to me because I’m someone he want to be with in the long run.
Over the break, I told him I wanted to make it work, and I wanted to be there for him, I didn’t want him to feel alone. Instead, it only made him want to prolong the break.

Like your ex, mine also switched his feelings completely and turned into an arrogant, uncaring individual. At first he explained it was not because of me, it was just a “lone wolf’ phase he’s going through, implying that he’s like that with everyone.
Eventually I found out that was not true, and the only person that he’s acting cold and arrogant to was me. In fact, while he was single, he was texting his friends about all these hot girls he saw and was actually flirting with one of his co-workers over the phone.

We actually got back together for 2 days, then he wanted to end it for real, saying we don’t get along anymore, denying that there are any other girls involved. Like you, I begged and pleaded, but he repeatedly said no.

You are so much stronger than I am, being able to pull off one month of no contact. I’m still struggling with not contacting mines, but for situation I think it would better if you just continue with no contact. Not to sound pessimistic, but no one knows what he’ll want after he “finds himself.” He may still want you, he may not. But if he still does wishes to be with you after he finds himself, he will reach out to you. It will hurt much less than if you stuck with him until he find himself and not choose you in the end.