My ex blocked me on everything will she ever unblock?

Jschooling_TX
So about 2 1/2 months ago me and my girlfriend of 3+ years broke. I saw this coming out of no where and still haven't gotten any reasons. I was shocked because a week before we were talking about marriage and children and all that good stuff. We were habing excellent sex and I could really feel the love and when she talked about our future I could tell she belived every single word of what she was saying. A few days later we had one little and she stopped talking. Then a week after that she calls me and gives fake reasons for the break up end says she is done (side note: she immediately enters a relationship with person she's only knew for a week before the breakup and I beilve it's a rebound). I made all the rookie dumb mistakes and begged and called and texted and she even had her mom message me saying I should stop texting her daughter. I honestly just wanted an explanation for why the girl who I just celebrated 3 years with just up and left me and was handling it fine. She started partying more and hanging with people who spend their Tuesday nights habing vodka Tuesday. So after a month and half she blocks me from everything. All aspects of her life. I don't understand how someone 2 months ago wanted children with me could now care less about me. My question is will she ever unblock me? Will she realize she made a mistake? Cause honestly I can't handle not having my bestfriend in my life and it hurts seeing her with another guy that I feel I pushed her to. What can I do and will she ever think her actions were wrong?
My ex blocked me on everything will she ever unblock?
3 Opinion