You need to get into therapy to get your head on straight.

It sounds like you may be bipolar. Go from super happy (she is the love of my life) to depressed/angry (she is lower than whale shit on the bottom of the ocean).

I will say that you don't deserve your wife. Sorry but you don't treat your soulmate like garbage and send her packing to her family. You threaten divorce and then beg and plead to have her back. You really need to fix yourself if you want this to work. I feel so much sadness for your wife. She has to walk on eggshells wondering if today is the day you want to leave her again.

Let's put this into perspective... you want to divorce in october and she left. She starts building her OWN life without you and you want her back. She said NO! How'd that make you feel? Shitty? Sad? Because you basically do the same to her. Want her then not.

She needs therapy for codependency if she keeps coming back.

As for advice... **IF** you truly want this to work **YOU** need to do some serious grovelling/eggshell walking with her family. She is right that she has to build you up the family and that's not fair. You broke it. You fix it. You're ashamed and lost. Well you better put on your big boy pants and act like a man. How do you do that? You go to their house. You ask to talk to the family. You start by saying you are incredibly sorry for how you've acted in the past. That you are ashamed. That you will DO ANYTHING to make this right in their eyes and MORESO to your wife. She deserves love and respect from her spouse. Not just kicked out one day you're fine and then next day you're not. 

And you better back this up with **ACTIONS** not just words and crying. Because their family is right that they are disgusted with you. And you won't have the trust of the family if you keep ebbing and flowing like this.