Should I go back out with the guy I went out with for less than a month, suddenly became a jerk and an a-hole

Don't call. I know you miss him, but I don't think it will be a good idea to call him.
If you do call and lets say you two get back together. he's still going to show you that "mean" side of him, and put you down. And you don't want that.
But lets say he calls and pursues you, then you can tell him he has to control that part of him around you. etc.
It will be better if he calls, so don't make the first move.

whatever you do, don't call him up. I know 8 months seems long. trust me because I've been there. regardless of how long the relationship was, you have to ask yourself, was it really worth it. can you honestly say that this is a guy that you want to be with for the rest of your life. do you really want to spend each day of your living life to be verbally abused in every possible way? to be told that you and your family are ____? whatever good things he says now will not change his recent history of verbal abuse. if he doesn't get the reaction that he wants from you via verbal abuse, it'll escalate to mental and eventually physical abuse. yes I know it sounds extreme and you want to believe that he will not do such a thing to you, but you have to prepare yourself for that possibility. take off those rose colored glasses and just try to see him for who he really is. this is not a person that you want in your life. he will only make you feel miserable, down, belittled and unloved. when a man loves you he will do everything in his power NOT to hurt you. he'll be the first one to say good things about you and your family. he hasn't done that. instead he's the one putting you down. I know you like the guy and see some good in him, but you CANNOT change a person. if being verbally abusive is the way he is then that's who he is. you can't change him. only he can change himself, and I highly advise you not to be the one to sit there and watch him try to change himself when he's just doing it to try and win you back. old habits die hard and it won't happen in a matter of weeks. it takes years!

look, there are other men who are much more deserving of you. as hard as that is to believe, it is true. you just have to let yourself move on from this train wreck and give yourself time to heal. he can apologize all he wants but you know that he's just going to keep doing the same thing again. like the saying goes, 'same old shit different day '. I don't mean to sound rude, but you seem like a nice girl and I'd hate to see someone like you keep getting hurt and taken advantaged of someone who clearly isn't deserving of you. just remember that man worthy of you is someone who will put his lady up on a pedestal regardless of what anyone else thinks. he will be her rock and her knight in shining amour. this guys isn't any of that. he's just another toad that you have to kiss to get to your prince charming. so chin up and stand firm. just move on. sooner or later, you'll be glad that you did. and it'll feel like a huge weight has been lifted from your shoulders.

cheer up, the perfect guy for you will come along. you just have to give him a chance. :)

he does sound kinda mean. but if he tells you he likes you again and stuff like that. he might've changed a lil bit and became more mature. that's what happened to me, try it again and see what happens.